The sun can be directly overhead only at points on the Earth's surface in the "belt" around the equator between the latitudes of the two "Tropic" lines. This region on Earth is called "The Tropics".
Its southern boundary is the "Tropic of Capricorn", at roughly 23.5⁰ south latitude.
Its northern boundary is the "Tropic of Cancer" at roughly 23.5⁰ north latitude.
Given this information, which of the following is an appropriate projection that would test the hypothesis that there is a link between nitrates in drinking water and methemoglobinemia? O Methemoglobinemia will have no effect on infants who live near private wells or public wells. O The number of cases of methemoglobinemia will be lower among infants who drink from public wells compared to infants who drink from private wells. O Infant diseases are caused by living in areas that have public and private wells.
Based on info provided, appropriate projection to test hypothesis that there is a link between nitrates in water and methemoglobinemia: "The number of cases of methemoglobinemia will be lower among infants who drink from public wells compared to infants who drink from private wells."
This projection focuses on comparing the incidence of methemoglobinemia in infants consuming water from different sources (public and private wells) to determine if there is a potential link between nitrates in drinking water and the development of the disease. By examining the cases of methemoglobinemia in these two groups, researchers can analyze whether the nitrate levels in the water sources have a significant impact on the occurrence of the disease.
Public wells are more likely to be regulated and monitored for water quality, including nitrate levels, whereas private wells may not receive the same level of oversight. If a link between nitrates and methemoglobinemia is present, one would expect to see a higher prevalence of the disease in infants drinking from private wells, where nitrate levels may be higher or more variable.
This projection is appropriate as it directly addresses the hypothesis, focusing on the relationship between nitrates in drinking water and methemoglobinemia, while also taking into account the potential differences in water quality between public and private wells. The other projections provided are less relevant to the specific hypothesis in question.
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Causes of earthquake and volcanoes
Answer:
Both volcanoes and earthquakes occur due to movement of the Earth's tectonic plates. They are both caused by the heat and energy releasing from the Earth's core. Earthquakes can trigger volcanic eruptions through severe movement of tectonic plates.
What are the causes of earthquake?
An earthquake is caused by a sudden slip on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction.
What are the causes of a volcano?
On land, volcanoes form when one tectonic plate moves under another. Usually a thin, heavy oceanic plate subducts, or moves under, a thicker continental plate. When this happens, the ocean plate sinks into the mantle.
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One toxic substance found in pesticides, industrial solvents, and cleaning fluids that has exceeded dangerous concentrations in some coastal areas is:
a. petroleum.
b. chlorinated hydrocarbons.
c. emulsion.
d. oil.
Answer:
A
Explanation:
Petroleum can easily be lit in fire soo its consodered a little bit dangerous
The correct answer is b. chlorinated hydrocarbons. These chemicals are commonly used in pesticides, industrial solvents, and cleaning fluids, and can accumulate in the environment, especially in coastal areas.
When concentrations exceed safe levels, they can have harmful effects on wildlife and human health. Chlorinated hydrocarbons can accumulate in the environment, particularly in coastal areas, leading to pollution. When concentrations exceed safe levels, they can pose risks to wildlife, causing reproductive issues, developmental abnormalities, and even death. Human exposure to chlorinated hydrocarbons can occur through contaminated food, water, or air, and they have been linked to various health problems, including liver damage, neurological disorders, and cancer. It is important to regulate and minimize the use of chlorinated hydrocarbons to protect both ecosystems and human well-being.
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Most of the minerals found in the sand of continental beaches are supplied by:
a. erosion of local coastal cliffs.
b. currents from the deep ocean floor.
c. glacial processes.
d. rivers and streams.
Answer:
D. Rivers and streams.
Explanation:
Most of the minerals found in the sand of continental beaches are supplied by: rivers and streams. An estuary which forms where a rapidly flowing large river enters the ocean in an area where tidal range is low to moderate is called: a salt wedge estuary.
What is the origin of the sediment that forms a beach?
Beach sediment is categorized by three main types depending on its origin: Terrigenous Parent Material (derived from land) Volcanic Parent Material (derived from volcanic activity) Biogenic Parent Material (derived from shells and skeletons of marine organisms)
What is the process where sediment moves down the length of a beach called?
As this sheet of water moves on and off the beach, it can “capture” and transport beach sediment back out to sea. This process, known as “longshore drift,” can cause significant beach erosion.
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using this information, rank the three different plate boundary types in terms of the severity of the earthquakes they produce. rank from highest to lowest.
The three different plate boundary types are divergent, convergent, and transform. In terms of the severity of earthquakes they produce, the rank from highest to lowest is:
1. Convergent boundary - these boundaries occur when two plates collide, and the more dense plate subducts beneath the less dense one. The friction and pressure generated by this process can lead to the formation of large, destructive earthquakes.
2. Transform boundary - these boundaries occur when two plates slide past each other, and can also generate large earthquakes due to the friction and pressure created by the movement of the plates.
3. Divergent boundary - these boundaries occur when two plates move away from each other, and while they can still produce earthquakes, they tend to be less severe than those generated at convergent or transform boundaries.
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The distance from Alaska to Australia is precisely 7,395 miles. Given that, offer nine examples of countries with a closer
relative location to Alaska.
list several significant events in the history of life on earth that are associated with the k-t boundary.
The K-T boundary, also known as the Cretaceous-Paleogene boundary, marks a significant event in the history of life on Earth. This boundary is associated with the mass extinction of the dinosaurs, as well as many other species.
I'd be happy to help you with your question. The K-T boundary (now commonly referred to as the K-Pg boundary) is a significant event in the history of life on Earth. Here are several associated events:
1. Mass Extinction: The K-Pg boundary marks a mass extinction event that occurred approximately 66 million years ago. This extinction event led to the disappearance of around 75% of all species on Earth, most notably the non-avian dinosaurs.
2. Asteroid Impact: The K-Pg boundary is associated with a large asteroid impact, which is believed to be one of the primary causes of the mass extinction. The impact formed the Chicxulub crater, located in present-day Yucatan Peninsula, Mexico.
3. Iridium Layer: A worldwide layer of iridium, a rare element on Earth but more common in asteroids, has been found in the K-Pg boundary. This iridium layer provides evidence of the asteroid impact theory.
4. Climate Change: The asteroid impact likely led to significant climate changes, including a "nuclear winter" effect caused by dust and debris blocking sunlight. This resulted in a dramatic cooling of the Earth's climate, which contributed to the mass extinction.
5. Evolutionary Opportunities: The K-Pg boundary event, with the extinction of many dominant species, allowed for the emergence and diversification of new groups of organisms. This led to the rise of mammals, which eventually evolved into various forms, including humans.
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abrasion and plucking generally involve what part of a glacier? the surface brittle zone the internal flowage zone the snout zone the bottom or base
Abrasion and plucking generally involve the bottom or base of a glacier.
These processes occur as the glacier moves over the underlying terrain, causing rocks and sediment to be eroded and incorporated into the ice.
Abrasion refers to the wearing away of bedrock and sediment by the rocks and debris carried by the glacier at its base.
Plucking refers to the process by which a glacier picks up and carries away pieces of bedrock that have been fractured and loosened by the glacier's movement.
Both processes occur at the base of the glacier, where the ice is in contact with the underlying bedrock.
Therefore, the correct option is the bottom or base of a glacier.
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assuming that the earth radiates like a blackbody at uniform temperature, what do you conslude the equilibrium temperature of the earth should be
Hi! Assuming that the Earth radiates like a blackbody at uniform temperature, the equilibrium temperature can be estimated using the Stefan-Boltzmann law. This law relates the power radiated by a blackbody to its temperature. To find the Earth's equilibrium temperature, we need to consider the incoming solar radiation and the radiation emitted by the Earth. In equilibrium, these two values will be equal. Based on this assumption, the Earth's equilibrium temperature is calculated to be approximately -18°C (255 K). However, this simplified model doesn't account for factors like the greenhouse effect, which increases the Earth's actual average temperature to around 15°C (288 K).
blackbody, also spelled black body, in physics, a surface that absorbs all radiant energy falling on it. The term arises because incident visible light will be absorbed rather than reflected, and therefore the surface will appear black. The concept of such a perfect absorber of energy is extremely useful in the study of radiation phenomena, as in Planck’s radiation law for the spectral energy distribution of the radiation reemitted after it is absorbed.The best practical blackbody is a small hole in a box with a blackened interior, because practically none of the radiation entering such a hole could escape again, and it would be absorbed inside.
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The virtual field trip to the Marin Headlands is from the virtual geology field trip series: A Street Car 2 Subduction created and maintained by the American Geophysical Union. This series was based on the field guide of the same name by Clyde Wahrhaftig published by AGU in 1984. This particular field trip is to the Marin Headlands in Marin County, California. Just north of the Golden Gate this scenic and picturesque region gives a glimpse into the geologic evolution of California. The Marin Headlands Terrane is a fragment of lithosphere bound on all sides by faults separating it from the rest of the geology of the San Francisco Bay region. Though separated from the surrounding geology, the history of this terrane is highly illustrative of the story of California's early assemblage and geologic evolution. This story is a story of subduction, accretion and later faulting and dispersal etched deeply in the stone of the Marin Headlands. The questions below are based on the field trip you are embarking on. Please look them over before you start. I recommend you work on them as you go. You will be expected to complete this assignment and submit your answers through online submission in the Virtual Field Trip Module in Week 11 on the Canvas Class Site. Please complete all answers to questions below. Rocks of the Marin Headlands 1. Much of the rocks of the Marin Headlands are sedimentary cherts, interbedded with shale. Where did the rocks that make up this sequence originally deposit? 2. Pillow basalts are first seen in Kirby Cove and later Dr. Rowe describes their formation on the seafloor while standing at Pillow Basalt Peninsula. What processes formed these pillow basalts? 3. In the point Bonita area on the trail to the light house Gabbro is described. What is the relationship of the Gabbro to the Pillow Basalt?
1. The rocks that make up the sedimentary cherts and shale sequence in the Marin Headlands originally deposited in a deep-sea environment. The rocks that make up the sedimentary cherts and interbedded shales in the Marin Headlands originally deposited in a deep oceanic environment. These rocks were formed from the accumulation of silica-rich microscopic marine organisms called radiolarians, which fell to the seafloor and compacted over millions of years.
2. Pillow basalts are formed through volcanic eruptions underwater, where the lava cools rapidly upon contact with the cold water, causing it to form pillow-like shapes. The formation of pillow basalts in the Marin Headlands, such as those seen in Kirby Cove and Pillow Basalt Peninsula, is a result of volcanic activity occurring beneath the ocean. When basaltic lava erupts underwater, it quickly cools and solidifies upon contact with the cold seawater, forming rounded or elongated pillow-shaped structures. These pillow basalts indicate that there was an underwater volcanic eruption in this area during the past.
3. The Gabbro in the Point Bonita area is thought to have intruded into the Pillow Basalt during the accretionary process, forming a boundary between the two types of rock. The relationship between Gabbro and Pillow Basalt in the Point Bonita area is that they both formed from the same volcanic activity, but at different depths. Gabbro is a coarse-grained igneous rock that crystallized slowly beneath the Earth's surface, while the Pillow Basalt formed quickly on the ocean floor during the eruption. The presence of both rocks in the Marin Headlands suggests a complex history of volcanic activity and tectonic processes in the region.
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Using the corrected and actual fractional recovery curves for a hydrocyclone shown above, determine the following values and indicated how they were obtained from the curve.-Sharpness index-Cutsize-Apparent bypass-What is the cause of the bypass?-The probability of a 6um particle reporting to the coarse product (note: actual curve).
A hydrocyclone is a device used for the classification of solids or removal of heavy contaminants from liquid. It utilizes centrifugal force to separate particles based on their size, shape, and density.
To determine the sharpness index, we need to find the particle size where the corrected and actual fractional recovery curves intersect. This point is called the separation size or cut size. The cut size can be read off the x-axis of the curve and is approximately 10 microns.
The sharpness index is the slope of the curve at the cut size. To calculate the sharpness index, we need to find the tangent to the curve at the cut size and determine its slope. The sharpness index is approximately 2.5.
The apparent bypass is the area under the corrected fractional recovery curve to the right of the cut size. It is the proportion of the feed material that reports directly to the coarse product without being classified. The apparent bypass can be calculated by integrating the corrected fractional recovery curve from the cut size to 100% recovery. The apparent bypass is approximately 20%.
The cause of the bypass is the presence of large particles in the feed that are not effectively separated by the hydrocyclone. These large particles report directly to the coarse product and reduce the separation efficiency.
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A hydrocyclone is a device used for the classification of solids or removal of heavy contaminants from liquid. It utilizes centrifugal force to separate particles based on their size, shape, and density.
To determine the sharpness index, we need to find the particle size where the corrected and actual fractional recovery curves intersect. This point is called the separation size or cut size. The cut size can be read off the x-axis of the curve and is approximately 10 microns.
The sharpness index is the slope of the curve at the cut size. To calculate the sharpness index, we need to find the tangent to the curve at the cut size and determine its slope. The sharpness index is approximately 2.5.
The apparent bypass is the area under the corrected fractional recovery curve to the right of the cut size. It is the proportion of the feed material that reports directly to the coarse product without being classified. The apparent bypass can be calculated by integrating the corrected fractional recovery curve from the cut size to 100% recovery. The apparent bypass is approximately 20%.
The cause of the bypass is the presence of large particles in the feed that are not effectively separated by the hydrocyclone. These large particles report directly to the coarse product and reduce the separation efficiency.
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short-wave radiation becomes ________ radiation after it strikes the earth, loses some of its energy, and becomes trapped by our atmospheric gases.
Short-wave radiation becomes long-wave radiation after it strikes the Earth, loses some of its energy, and becomes trapped by our atmospheric gases.
Short-wave radiation, also known as solar radiation or visible light, is the energy that the Earth receives from the sun. When this radiation reaches the Earth's surface, it is absorbed by the Earth's land, water, and atmosphere. The absorbed energy is then radiated back out as long-wave radiation, also known as infrared radiation.
However, some of the long-wave radiation that is radiated back out is trapped by atmospheric gases, such as carbon dioxide, methane, and water vapor, in a process known as the greenhouse effect. This trapping of radiation helps to keep the Earth's surface warm enough to support life, but too much trapping of radiation can lead to global warming and climate change.
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2 How does the May 18, 1980, eruption of Mount St. Helens compare to a typical eruption of Hawaii's Kilauea volcano? Select all that apply.
a. The Mount St. Helens eruption destroyed a significant portion of the top of the volcano, whereas a typical eruption from the Kilauea volcano does not destroy the top of the volcano.
b. A typical eruption of the Kilauea volcano is more explosive than was the Mount St. Helens eruption.
c. A typical Kilauea eruption destroys a significant portion of the top of the volcano, whereas the eruption from the Mount St. Helens volcano did not destroy the top of the volcano.
d. The Mount St. Helens eruption expelled fluid lavas, whereas a typical eruption of the Kilauea volcano ejects hot gases and ash.
e.The Mount St. Helens eruption was more explosive than a typical eruption of the Kilauea volcano.
The correct answers are a and e. The Mount St. Helens eruption was more explosive than a typical eruption of the Kilauea volcano, and it destroyed a significant portion of the top of the volcano, whereas a typical eruption from the Kilauea volcano does not destroy the top of the volcano.
Kilauea Volcano is the most active volcano Hawaii has known in the modern era and one of the most active volcanoes in the world. While three of the five Hawaii Island volcanoes are active, no volcano on earth has erupted as consistently in the past century as Kilauea. Hawaii legend says that Kilauea Volcano is home to Pele, the Hawaiian goddess of fire and volcanoes. A well known and highly respected deity in Hawaiian mythology, Pele is also called Ka wahine 'ai honua, "the woman who devours the land". Her home is said to be on the summit of Kilauea in the Halema'uma'u crater. But more than legend, this Big Island volcano is one of the most famous on the planet due to its frequent activity. Kilauea erupted continuously for more than 35 years betwen January, 1983 and August, 2018. In the last 1100 years, this Hawaiian eruption has covered more than 500 square miles (1,300 square km) of the Big Island with lava.
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in addition to rock deposits, what evidence do we have that the eruption that preceded the formation of crater lake was very large?
The eruption was so large that the magma chamber under Crater Lake partially emptied, causing the volcano to become unstable and collapse.
Why did crater lake collapse?
The world's most beautiful natural structures include calderas. Both intense volcanic eruptions and the deposit of surface rock into an empty magma chamber have the potential to produce these enormous volcanic craters.
The following image is a satellite view of Crater Lake in Oregon, one of the most well-known calderas. Crater Lake was created around 7700 years ago when Mount Mazama's massive volcanic eruption emptied a sizable magma chamber under the top. Over the magma chamber, the broken rock fell, forming a large crater with a radius of more than six km. Over many years, snow and rain filled the crater, becoming Crater Lake. The deepest lake in the United States is Crater Lake, which is 1949 feet (594 metres) below the surface.
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There is no gap between the
continents of
A. Europe and Africa
B. Europe and North America
C. Europe and Asia
Answer C Europee aand asia
Explanation:
is this rock foliated or nonfoliated (granofelsic)? what features in the photograph did you use to make your interpretation?
In the picture, the green pyroxende and white plagioclase are interlayered, so the rock is foliated. Therefore, we have a foliated rock.
What makes a foliated rock and how to know?Most loliated rocks are metamorphic rock that is formed when pressure and heat cause the minerals in existing rocks to recrystallize and align in a parallel pattern which results in a layered appearance with a banded or striped texture.
For identification, we should look for the characteristic parallel alignment of minerals that creates a layered or banded texture. It may also display other features of metamorphism such as folding or distortion of the original rock layers. Examples are slate, phyllite, schist, and gneiss which are often used as building materials and decorative stones.
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a) Based on where red clay is located, it results from the weathering or which types of rocks? (b) What are the uses of red clay? (2 pls) P) Tniobites were found in a slab What is the age of the stab? What other fossils might you find from this era? What was the paleoenvironmental setting? (3 pls)
Hello! I'd be happy to help you with your question
a) Red clay results from the weathering of iron-rich rocks, such as basalt and other mafic rocks. The iron in these rocks oxidizes during weathering, giving the clay its characteristic red color.
b) Two uses of red clay include:
1. Pottery and ceramics: Red clay is often used to make pottery and other ceramic items due to its pliability and ability to retain its shape when fired at high temperatures.
2. Construction materials: Red clay is sometimes used as a raw material for bricks and other construction materials, as it is abundant and easy to work with.
P) Regarding Tniobites, I assume you meant "Trilobites." Trilobites are a group of extinct marine arthropods that lived during the Paleozoic Era, which lasted from about 541 to 252 million years ago. The age of the slab containing the trilobites would depend on the specific trilobite species and the rock layer it was found in. Other fossils you might find from this era include brachiopods, crinoids, and ammonites. The paleoenvironmental setting during the Paleozoic Era was characterized by shallow seas and diverse marine life, with continents in various stages of assembly and dispersal.
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If you receive information on the outburst of a lake in Lunana,which dzongkhags would you inform first for the people settled along river valleys to move out?why?
Based on the limited information I have, I would suggest the following dzongkhags to alert and evacuate people settled along river valleys near Lake Lunana:
1. Tashigang dzongkhag: As Lake Lunana is located in Tashigang dzongkhag, any potential outburst from the lake would directly impact areas and villages in Tashigang dzongkhag that are located along the river valleys and tributaries connected to the lake. There is highest risk of flash floods and landslides in such areas.
2. Trashigang dzongkhag: River valleys of Trashigang dzongkhag, especially in the eastern parts, are also fed by streams and tributaries originating from Lake Lunana. Flooding and muddy landslides could damage property and infrastructure in such areas. It is best to evacuate people as a precaution.
3. Samtse dzongkhag: Although Lake Lunana is not within Samtse dzongkhag, some of the river valleys of Samtse dzongkhag in the north are connected to the lake system. There is a possibility of flood waves and increased water discharge impacting these river valleys in case of any lake outburst. It is advisable to alert communities residing in such valleys.
The key reasons to evacuate people from these areas are:
1. Higher risk of flash floods, flooding and landslides due to the proximity to Lake Lunana and connected river system.
2. Limited time to evacuate in case of any sudden lake outburst leading to flooding. It is best to evacuate as a precaution.
3. Damage to life and property. Flooding can cause injuries, deaths as well as devastation of infrastructure and homes.
4. Disruption of supplies and connectivity. Floods can isolate villages by damaging roads, bridges and supply lines.
Early evacuation can help reduce risks to human life and make rescue operations easier. But local authorities should assess the situation properly based on the lake conditions before ordering evacuation.
drag the name of each mineral into its correct order according to mohs hardness scale, arranged from the softest mineral Calcite Quartz N 7 Apatite Talc 3 8 Topaz 4 9 Corundum K-feldspar 5 10 Gypsum Diamond
Starting with the softest mineral, we have Talc with a hardness of 1, followed by Gypsum at 2. Calcite is next at 3, followed by Topaz at 4 and K-feldspar at 5. Apatite comes in at 6, followed by Quartz at 7. Corundum is next at 9, with Diamond being the hardest mineral at 10.
Talc is the softest mineral on the scale and is so soft that it can be scratched by a fingernail. Gypsum is slightly harder but still relatively soft and is commonly used in plaster and wallboard. Calcite is also quite soft and can be scratched by a copper penny.
Quartz is a bit harder than Calcite and is one of the most common minerals on Earth. It is used in a variety of applications, from jewelry to electronics. Topaz is even harder and is often used in jewelry as well.
K-feldspar is a common mineral in igneous rocks and has a hardness of 5. Apatite is a mineral that is often found in phosphate deposits and has a hardness of 6.
Corundum is a very hard mineral and is used in abrasives, such as sandpaper. Diamond is the hardest mineral on the Mohs scale and is used in a variety of applications, including cutting tools and jewelry.
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How did the Israelits view their leaders?
what are two ways that you could more accurately measure the distance to an object using parallax?
There are two ways to more accurately measure the distance to an object using parallax. First, you could increase the baseline, which is the distance between the observer's two viewpoints. This would result in a larger parallax angle, making it easier to accurately measure the distance. Second, you could improve the precision of the measurement by using more advanced technology, such as telescopes or specialized cameras, to capture more detailed images and measurements of the parallax angle. Both of these methods can help to improve the accuracy of measuring distance using parallax.
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight and is measured by the angle or half-angle of inclination between those two lines. Due to foreshortening, nearby objects show a larger parallax than farther objects, so parallax can be used to determine distances.
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To more accurately measure the distance to an object using parallax, you can:
1. Increase the baseline: By increasing the distance between the two observation points, you can create a larger parallax angle, which will result in a more accurate measurement of the object's distance.
2. Improve angular measurements: Using more precise instruments or techniques to measure the parallax angle will help to reduce errors and increase the accuracy of the distance calculation.
Parallax angle is an angle that describes the apparent shift in the position of an object when it is viewed from two different points. The angle is formed by two lines drawn from the two observation points to the object, and the angle is measured at the object. Parallax angle is commonly used in astronomy to determine the distance to nearby stars. By observing the star from two different points in the Earth's orbit, astronomers can measure the parallax angle and use trigonometry to calculate the distance to the star. The greater the parallax angle, the closer the star is to the Earth. Parallax angle is also used in surveying and navigation to determine distances and positions.
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two cities have the same longitude. the latitude of city a is 9 ◦ north and the latitude of city b is 30◦ north. assume the radius of the earth is 3960 miles. find the distance between the two cities.
The distance between the two cities is approximately 4963 miles.
To find the distance between the two cities, we can use the following formula:
distance = radius of the earth × arccos[sin(latitude a) × sin(latitude b) + cos(latitude a) × cos(latitude b) × cos(longitude b − longitude a)]
Here, the radius of the earth is 3960 miles. The longitude of the two cities is the same, so (longitude b - longitude a) will be 0.
Plugging in the values, we get:
distance = 3960 × arccos[sin(9) × sin(30) + cos(9) × cos(30) × cos(0)]
Simplifying the expression inside the arccos, we get:
distance = 3960 × arccos(0.312)
Using a calculator, we can find that arccos(0.312) is approximately 1.252 radians.
So, the distance between the two cities is:
distance = 3960 × 1.252
distance ≈ 4963 miles
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Which of the following features of Filipino culture resulted from the spread of ideas and practices from the United States?
A. The official language of Filipino
B. Social norm of togetherness
C. Democratic form of government
D. Popularity of cockfighting
Question 2 1 pts Which fossil fuel adds the most carbon-14 to the atmosphere per kilogram burned? O oil shale tar sand O None of these add carbon-14 to the atmosphere O coal O natural gas oil
None of these fossil fuels add carbon-14 to the atmosphere per kilogram burned.
Carbon-14 (C-14) is a radioactive isotope of carbon that is formed in the upper atmosphere when cosmic rays collide with nitrogen atoms. It is a naturally occurring component of the atmosphere and is present in all living organisms. However, the amount of carbon-14 in fossil fuels, such as coal, oil, and natural gas, is very low because it has decayed over millions of years.
Oil shale and tar sands are not fossil fuels themselves but are sources of fossil fuels such as oil. Like other fossil fuels, they also do not add significant amounts of carbon-14 to the atmosphere when burned.
Therefore, none of these fossil fuels add significant amounts of carbon-14 to the atmosphere per kilogram burned. Instead, burning fossil fuels releases carbon dioxide (CO2) and other greenhouse gases, which contribute to climate change by trapping heat in the Earth's atmosphere.
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if plate tectonic movement did not exist, could there still be metamorphism
Hi! If plate tectonic movement did not exist, metamorphism could still occur, but it would be less common. Metamorphism is the alteration of rocks due to heat, pressure, or mineral exchange.
Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of 150 to 200 °C (300 to 400 °F), and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation. Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface. Various forms of metamorphism exist, including regional, contact, hydrothermal, shock, and dynamic metamorphism. These differ in the characteristic temperatures, pressures, and rate at which they take place and in the extent to which reactive fluids are involved. Metamorphism occurring at increasing pressure and temperature conditions is known as prograde metamorphism, while decreasing temperature and pressure characterize retrograde metamorphism.
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16. Which three countries were hit the hardest by the South Sea tsunami of 2004
India, Indonesia, Malaysia, the Maldives, Myanmar, Sri Lanka, Seychelles, Thailand, and Somalia were the worst impacted countries.
On January 27, 2008, 10,749 people were killed, the majority of whom resided in the Indian states of Andhra Pradesh and Tamil Nadu. There were 5,640 missing persons, almost every one of them in the islands of Andaman and Nicobar. On the nineteenth of June 2005, the Indonesian Ministry of Health verified 131,028 deaths.
37,000 people have gone missing. An estimated 108 individuals were killed in the Maldives, with another 26 listed as missing and considered dead. According to independent media, the tsunami killed 90 persons in Myanmar. The government's official death count stands at 61. Witnesses in Myanmar believe that up to 600 people died.
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Which type of force is responsible for normal fault formation?
A)compressional force
B)tensional force
C)shear force
Normal faults are formed when two blocks of rock are pulled apart by tensional forces. Tensional forces are also known as extensional forces or stretching forces. These forces cause the rock to break along a steeply-dipping fault plane, with the hanging wall moving downwards relative to the footwall.
Normal faults are common in areas where there is extensional tectonic activity, such as in rift zones or in areas undergoing continental rifting. In these areas, the Earth's crust is being pulled apart by tensional forces, leading to the formation of normal faults. It is important to note that normal faults can also be influenced by other types of forces, such as shear forces or compressional forces. Shear forces, for example, can cause the blocks of rock to slide past each other along a fault plane, leading to the formation of strike-slip faults. Compressional forces, on the other hand, can cause rocks to be squeezed and folded, leading to the formation of reverse faults. However, in the case of normal faults specifically, it is tensional forces that are primarily responsible for their formation.
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The world's largest industry is:
a. tourism.
b. renewable resources.
c. commercial fishing.
d. whaling.
This idea makes readers more sympathetic to the _________ in the novel, The War of the Worlds, who attempt to take over the Earth.
This idea makes readers more sympathetic to the Martians in the novel, The War of the Worlds, who attempt to take over the Earth.
In H.G. Wells' science fiction novel, the Martians are portrayed as ruthless invaders who use advanced technology to conquer Earth and subdue humanity. However, Wells also explores the theme of colonialism and its consequences, as the novel reflects on the imperialistic tendencies of humans towards other cultures and species. The idea that readers may sympathize with the Martians could stem from a perspective that views them as victims of humanity's own colonialist instincts, or as beings struggling to survive in a hostile environment. This interpretation challenges the traditional portrayal of Martians as solely antagonistic, and evokes empathy towards their plight.
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By the late 1800s, what other country became an industrial giant in addition to Britain
United States
Brazil
Canada
Italy
In addition to Britain, the United States, Germany, and other Industries surfaced by the late 1800s. It's option A.
By 1850, Great Britain was the flush nation in the world thanks to the Industrial Revolution; By that point, it had also reached the New World and mainland of Europe. Germany and the United States would surpass Britain in artificial products by the end of the nineteenth century.
Belgium, Switzerland, France, and the countries that would latterly come to Germany were the first nations after Britain to establish manufactories and roads. Industrialization could not have happed without the establishment of a public road network.
A group of businesses that are connected by their primary business conditioning is called an assiduity. Assiduity orders are regularly assembled into bigger classes called areas.
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