Summarize the trends in atmospheric warming and cooling over the past 900,000 years and during the last century.

Answers

Answer 1

Over the past 900,000 years, Earth's climate has experienced cycles of warming and cooling associated with variations in the planet's orbit and the concentration of greenhouse gases in the atmosphere.

Temperatures have frequently alternated between cold times known as glacial periods and mild periods known as interglacial periods during these cycles.

Variations in the planet's orbit have caused these cycles, which impact the amount of solar radiation reaching the Earth's surface.

However, the warming trend during the last century has been unparalleled in the context of the previous 900,000 years. Since the late 1800s, the Earth's surface temperature has risen by around 1.0 degree Celsius (1.8 degrees Fahrenheit), and the rate of warming has been quicker than at any previous point in the past 2,000 years.

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Related Questions

not hard but still help

Answers

Answer:

D - Condensation

H - Groundwater

G - Infiltration

B - Evaporation

A - Solar Radiation

C - Transpiration

E - Precipitation

F - Runoff

Explanation:

Hurricanes begin over oceans. Which location below most likely produced the most violent
storms? Circle your answer choice in the map and explain your answer below.

Answers

I guess “C” since it’s in the ocean and it’s hot near Africa
The hotter the temperature the more violent the storm.

Where are most tropical rainforests located?
a) near the north pole
b) near the south pole
c) near the equator
d) in the middle latitudes
e) their location is random

Answers

The correct answer is c) near the equator.

Tropical rainforests are mainly found in regions near the equator. These areas have a tropical climate characterized by high humidity and warm temperatures throughout the year. The equatorial regions receive a significant amount of sunlight, which causes warm air to rise and create the perfect conditions for heavy rainfall.

The largest and most famous tropical rainforests are located in South America, Africa, and Southeast Asia, in countries such as Brazil, the Democratic Republic of Congo, and Indonesia. These forests support high levels of biodiversity and provide habitat for millions of plant and animal species. They also play a critical role in regulating the Earth's climate by absorbing carbon dioxide and releasing oxygen through photosynthesis.

In contrast, the areas near the north and south poles have cold climates and low precipitation, which are not conducive to the growth of rainforests. Similarly, the middle latitudes are characterized by more temperate climates and lower rainfall, making them unsuitable for tropical rainforests.

Therefore, the correct answer is c) near the equator.

What are common uses for the material quartz

Answers

Quartz is used for various purposes on earth. These are discussed below

What are common uses for the material quartz

Quartz is an extremely useful mineral that has multiple uses; some of which include:

Construction: Quartz is used in multiple items of the construction industry, like cement, ceramic, and glass. It often serves as a filler material in construction products and likewise is a key part of the manufacture of glass and ceramics.

Electronics: Quartz crystals are used in different electronic devices, such as radios, watches, and televisions. These are invaluable oscillators and filters in electrical circuits due to the crystal's precise vibration frequency.

Jewelry: Quartz is highly popular when it comes to jewelry-making. It is supplied in various shades, consisting of rose, clear, purple, and smoky, and is frequently chosen instead of more expensive stones.

Energy: Quartz is essential for producing solar panels and can be utilized during the generation of silicon cells, which transfer sunlight into electricity.

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if the moon is at its closest distance to earth, is its angular size sufficiently large to block the sun's surface completely from view to someone standing on earth?

Answers

No, the moon's angular size is not sufficiently large to completely block the sun's surface from view to someone standing on Earth, even when it is at its closest distance to Earth.

The reason for this is that the moon's angular size is only about 1/2 degree, while the sun's angular size is about 0.5 degrees. This means that the moon is not large enough to cover the entire face of the sun, and there will always be a ring of sunlight around the edge of the moon during a solar eclipse.

However, during a total solar eclipse, the moon does block the sun's surface completely from view, but this is only visible from a specific path on Earth, which is typically only a few dozen to a few hundred miles wide. Outside of this path, observers will see a partial eclipse, where only a portion of the sun is blocked by the moon.

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The ________ describes the path water takes as it moves between the land, the ocean, and the atmosphere.
A. Oxygen Cycle
B. Rock Cycle
C. Matter State Cycle
D. Hydrologic Cycle

Answers

D. the Hydrologic Cycle

What percentage of Earth's water is freshwater?
a) 3%
b) 20%
c) 40%
d) 75%
e) 97%

Answers

97% of Earth's water is saltwater, leaving only 3% as freshwater, most of which is trapped in glaciers and inaccessible for use. Thus the correct option is E.

Only a small portion of the Earth's surface is covered by freshwater, which makes up around 71% of all water. About 97% of the water on Earth is salty, found in oceans and seas, while the remaining 3% is freshwater, according to the United States Geological Survey (USGS).

But of this 3%, almost two-thirds are trapped in glaciers and ice caps, while the remaining freshwater is located in lakes, rivers, and subterranean aquifers. Thus, the real percentage of freshwater that is available for human consumption is much lower, emphasising the significance of prudent water management.

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The atmosphere is absolutely unstable when...
-The ELR is less than the DALR and the MALR
-The ELR is greater than the DALR and the MALR
-The ELR is between the DALR and the MALR

Answers

Atmospheric stability refers to the tendency of air parcels to either rise or sink in the atmosphere.

The ELR is greater than the DALR and the MALR. The correct answer is b)

The Dry Adiabatic Lapse Rate (DALR) and the Moist Adiabatic Lapse Rate (MALR) are rates at which the temperature changes with altitude for dry and moist air parcels, respectively.

If the Environmental Lapse Rate (ELR), which is the actual rate at which the temperature changes with altitude in the atmosphere, is greater than both the DALR and the MALR, then the atmosphere is considered to be absolutely unstable. This means that air parcels will continue to rise and accelerate without any external lifting mechanism, leading to vertical instability and potential convective activity, such as thunderstorms or severe weather.

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True or False: Freezing rain falls as a liquid and freezes once its on the ground.

Answers

Freezing rain, also known as sleet or glaze, falls as liquid raindrops from the clouds but freezes on contact with objects at or near the surface that are at or below freezing temperatures. The correct statement is  False.

This is different from regular rain, which falls as liquid water and does not freeze upon contact with the ground or other objects.

Freezing rain occurs when a layer of warm air lies above the surface, causing raindrops to form in the warmer air. These raindrops then fall through a layer of sub-freezing air near the ground, which causes them to freeze upon contact with cold surfaces, such as roads, trees, power lines, and other objects. This can result in the formation of a glaze of ice on surfaces, which can be hazardous and cause slippery conditions.

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Of the 5 known mass extinctions, which is thought to have caused the largest loss of of life on earth?.

Answers

Out of 5 known mass extinctions, the Permian-Triassic extinction event, is considered to be the largest mass extinction ever.

Mass Extinctions:

A mass extinction is an event in which a significant proportion of the Earth's biodiversity is lost in a relatively short period of time. Mass extinctions are usually defined as events in which atleast 75% of species on Earth become extinct.

The five known mass extinctions are:

Ordovician-Silurian extinction event - ~443 million years agoLate Devonian extinction event -  ~359 million years agoPermian-Triassic extinction event - ~252 million years agoTriassic-Jurassic extinction event - ~201 million years agoCretaceous-Paleogene extinction event - ~66 million years ago

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Question 24
The type of sanitary landfill that should be developed on essentially flat land sited in dry areas is:
a. depression landfills
b. area landfills
c. progressive excavation landfills
d. cut and cover landfills

Answers

The type of sanitary landfill that should be developed on essentially flat land sited in dry areas is: area landfills. Therefore the correct option is option B.

Area landfills are the best type of dump for flat land areas in dry regions since they are built on the ground surface rather than underground. They can hold a huge amount of rubbish and their flat form offers waste disposal vehicles easy access.

To prevent leachate from contaminating groundwater, area landfills are often sealed with an impermeable barrier and covered with soil or other materials to control odour and decrease the potential for litter and vermin.

Depression landfills are built in a naturally occurring depression or excavated pit and are not suited for flat land locations because they require the excavation of the ground or a naturally occurring depression. Therefore the correct option is option B.

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The Unites States currently consumes roughly what percent of the world's oil?
a) 5%
b) 10%
c) 20%
d) 25%
e) 50%

Answers

The United States currently consumes roughly what percent of the world's oil is 50%.  Therefore, the correct answer is (c) 20%.

The United States is the world's top user of oil as of 2021, although it does not consume half of the world's oil.

The percentage of oil consumption by any country can fluctuate depending on a variety of factors

The United States utilised the roughly 18.12 million barrels per day (mb/d) of petroleum and the other liquids in 2020, according to the Energy Information Administration (EIA).

According to the same source, this accounts for the around 18% of total global consumption of petroleum and other liquids. Therefore, the correct answer is (c) 20%.

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__ can occur where undercutting by waves removes support from beneath cliff overhangs.
Group of answer choices
A. Cliff collapse
B. Mudslides
C. Landslides
D. Rock falls

Answers

D. Rock falls

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(T/F) term "deviant" refers to a moral, not a social judgement

Answers

False.
The term "deviant" typically refers to behavior that is considered to be outside the norms of a particular society or group. It is a social judgment rather than a moral one, as what is considered deviant can vary greatly between different cultures and time periods. The concept of deviance is often used in sociology and criminology to describe behavior that is considered to be unacceptable or abnormal by a particular group or society.

The flow of energy shown in Figures 3 and 4 is the source of the natural atmospheric greenhouse effect. Visible light penetrates the atmosphere and is absorbed by the surface. The heated surface gives off infrared light that is then absorbed by the atmosphere. The heated atmosphere gives off infrared light out to space and also back down to Earth's surface, making the surface temperature warmer than it would be without a greenhouse effect. The amount of energy entering and leaving the Earth system can be balanced, but Earth's surface temperature is warmer because the surface is heated both by visible light from the Sun and infrared light sent back from the atmosphere.
17) Consider the following debate between two students regarding the greenhouse effect
Student 1: So the greenhouse effect is caused by infrared light being trapped in Earth's atmosphere. Visible light from the Sun heats the ground, but the Infrared light given off by the ground gets permanently trapped in the atmosphere and can never escape
Student 2: think that's close. But based on Figure 3, all of the arrows balance and just as much energy leaves Earth as comes in. I think the greenhouse effect makes the surface hotter than it would be without greenhouse gases because the ground gets visible light from the Sun AND infrared light given off by the atmosphere that is sent back to the surface.
Do you agree or disagree with either or both of the students? Explain your reasoning.

Answers

I agree with Student 2. The greenhouse effect does not permanently trap infrared light in Earth's atmosphere.

The quantity of energy entering and leaving the Earth system can be balanced, which means that the same amount of energy enters and departs the system.

The greenhouse effect, on the other hand, causes the surface temperature to be warmer than it would be without greenhouse gases, since greenhouse gases in the atmosphere absorb and re-radiate infrared radiation back to the surface, in addition to visible light from the Sun, which heats the surface.

This re-radiated infrared radiation warms the surface, which would be cooler without it.

As a result, the greenhouse effect is not about permanently trapping energy in the atmosphere, but rather about changing the balance of incoming and departing energy to raise the temperature of the earth's surface.

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The term Paleozoic describes the era of ancient life forms.A. True
B. False

Answers

The given statement, "The term Paleozoic describes the era of ancient life forms" is true as the narrative of the oldest creatures in the Paleozoic is one of marine existence.

Simple fungus and similar species are probably present in watery habitats, although there is no proof of this in the fossil record. Early Paleozoic Era terrestrial environments lacked even the most basic living forms.

The Paleozoic Era, also spelled Palaeozoic, is a significant period of geologic time that started 541 million years ago with the Cambrian explosion, which led to an extraordinary diversification of marine life, and ended about 252 million years ago with the end-Permian extinction, the biggest mass extinction in Earth history. From oldest to youngest, the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian eras make up the major divisions of the Paleozoic Era.

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True.The term Paleozoic describes the era of ancient life forms

The term Paleozoic refers to an era in Earth's history that lasted from about 541 to 252 million years ago. It is often called the era of ancient life because it was during this time that many of the major groups of animals and plants that we know today first appeared. The Paleozoic era is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian.The Paleozoic era is a geological era that lasted from approximately 541 million years ago to 252 million years ago. It is sometimes referred to as the "Age of Invertebrates" due to the proliferation of marine invertebrates during this time, including trilobites, brachiopods, and crinoids.

The Paleozoic era is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian. During this time, there were major geological and biological events, including the diversification and expansion of life on land, the formation of the supercontinent Pangaea, and several mass extinction events, including the end-Permian extinction, which wiped out more than 90% of marine species.

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Which two nations are both among the top five consumers of oil, coal, and natural gas?
a) Russia and China
b) Russia and the United States
c) China and the United States
d) India and the United States

Answers

C, china and the United States

The immense pressure humans have placed on various global bioregions has given rise to what phenomenon?
a) novel ecosystems
b) biodiversity
c) increased precipitation
d) old-growth forests
e) tree hybrids

Answers

The immense pressure humans have placed on various global bioregions has given rise to the phenomenon of novel ecosystems, which are the result of human-induced changes to ecosystems. Thus the correct option is A.

Novel ecosystems are a result of the enormous pressure humans have put on many global bioregions. These ecosystems are a result of natural ecosystems being transformed by humans, such as by the introduction of alien species or different disturbance patterns. A novel mix of species, functions, and processes that has never happened together before defines novel ecosystems.

They can be found in significantly altered environments such as urban, suburban, agricultural, and others. Even though novel ecosystems could offer significant ecosystem services, they might also be less robust and have less biodiversity than natural ecosystems.

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A maritime climate is characterized by
a) hot summers
b) mild summers
c) cold winters
d) mild winters
e) mild summers and mild winters

Answers

A maritime climate, also known as an oceanic climate, is typically characterized by relatively mild temperatures both in the summer and winter seasons due to the moderating effect of nearby large bodies of water, such as oceans or seas.  

The correct answer is: e) mild summers and mild winters.

The presence of the water bodies helps to regulate the temperature by absorbing and releasing heat more slowly compared to land, resulting in less extreme temperature fluctuations. As a result, maritime climates tend to have mild summers and mild winters, with less temperature extremes compared to continental climates which are farther away from large bodies of water.

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A tectonic terrane can be defined as

Answers

Answer:

a crust fragment formed on a tectonic plate (or broken off from it) and accreted or "sutured" to crust lying on another plate.

Explanation:

In 2007 in the United States there were approximately 480 cars for every 1,000 people. The total number of cars in the United States in 2007 was closest to
A
150,000
B
30,000,000
C
150,000,000
D
300,000,000
E
3,000,000,000

Answers

In 2007 in the United States there were approximately 480 cars for every 1,000 people. The total number of cars in the United States in 2007 was closest to 150,000,000. Option C is the correct answer.

301.2 million people called the United States home in 2007. There were 48% of persons who owned cars. Multiplying 301.2 million by 48% results in 301,200,000 multiply 48/100, which equals 144,576,000. it equates to 150,000,000. Option C is the correct answer.

Huge power plants and sputtering smokestacks, two of the most typical representations of climate change, would benefit from a minor modification. For the first time in more than 40 years, transportation—including automobiles, trucks, aircraft, trains, and ships—instead of power production is the United States biggest source of greenhouse gas pollution. Our well-being is impacted by pollution from cars, which also contain climate change-causing gases called greenhouse gases. The most prevalent greenhouse gas created by humans, carbon dioxide, is also released by cars. Option C is the correct answer.

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A rock's type (igneous, metamorphic, or sedimentary) tells us a) its ageb) its chemical compositionc) how it was made

Answers

The type of rock provides information about how it was made, rather than its age or chemical composition.

Answer: c) how it was made

Igneous rocks are formed from the solidification of molten material (magma or lava) from within the Earth. They can have different chemical compositions depending on the type of magma or lava that formed them.

Metamorphic rocks are formed from the alteration of existing rocks through heat, pressure, or chemical processes. They can have different mineral compositions and textures depending on the specific conditions of metamorphism.

Sedimentary rocks are formed from the accumulation and cementation of sediments, which can include mineral and organic particles, as well as other rock fragments. They can provide clues about the environmental conditions and processes that occurred during their formation.

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Complete Question

A rock's type (igneous, metamorphic, or sedimentary) tells us:

a) its age

b) its chemical composition

c) how it was made

do you believe that human activity can substantially affect earth's atmosphere

Answers

The burning of fossil fuels, deforestation, industrial processes, and other human activities release large amounts of greenhouse gases (such as carbon dioxide, methane, and nitrous oxide) into the atmosphere. So yes I believe that human activity can affect the atmosphere.

Furthermore, human activity can cause other changes in the atmosphere, such as ozone layer depletion due to the release of certain chemicals (such as chlorofluorocarbons) into the atmosphere, and increased concentrations of air pollutants, both of which can be harmful to human health and the environment.

Overall, there is solid scientific evidence to support the premise that human activity has a significant impact on the Earth's atmosphere, and it is critical to take actions to limit our environmental impact and mitigate the effects of climate change.

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Which of the following traditions is NOT a part of the Hindu rituals

Answers

The traditions that is not a part of the Hindu rituals is discussing the Eightfold Path, usually they do not discuss this in the Hindu rituals.

What is Hindu rituals?

Hindu rituals are a set of practices and customs that are an integral part of the Hindu religion. These rituals vary depending on the region, tradition, and caste of the individual. Some of the common Hindu rituals include puja (worship), yajna (sacred fire ceremony), mantra recitation, fasting, and pilgrimage.

Puja involves the worship of deities, usually in the form of idols or images, with offerings of flowers, fruits, incense, and other items. Yajna is a fire ceremony where offerings are made to the fire while chanting sacred hymns. Mantra recitation involves chanting of sacred mantras to invoke the blessings of the deities.

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what are the two greenhouse gases most responsible for absorbing infrared light in earth's atmosphere

Answers

The two greenhouse gases most responsible for absorbing infrared (IR) light in Earth's atmosphere are carbon dioxide (CO2) and water vapor (H2O).

Both of these gases have molecules with bonds that may vibrate at infrared wavelengths, allowing them to absorb and re-emit infrared radiation released by the Earth's surface.

This mechanism captures part of the heat that would otherwise be emitted back into space, causing the temperature of the Earth's atmosphere to rise.

While other greenhouse gases, such as methane and nitrous oxide, exist, CO2 and H2O are the most prevalent and have the largest impact on global warming.

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Select all the possible ways in which the elevation of the surface of the Earth is increased. +Thrust faulting+Adding magma to the crust+Crustal or mantle heating beneath a region

Answers

The possible ways in which the elevation of the surface of the Earth is increased are: Thrust faulting, Adding magma to the crust and Crustal or mantle heating beneath a region.

The following are possible methods for increasing the elevation of the Earth's surface:

Thrust faulting occurs when two tectonic plates contact and one plate is pushed up and over the other, causing elevation to rise.Adding magma to the crust: When magma rises from the mantle and intrudes into the overlying crust, it bulges and rises in height. Heating beneath a region's crust or mantle: This can cause the rocks in the crust or mantle to expand and elevate, resulting in an increase in height.

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what gas molecules are primarily responsible fore the absorption of each of the following types of light in our atmosphere

Answers

The primary gas molecules responsible for the absorption of various types of light in our atmosphere are as follows: Ultraviolet (UV) radiation, Visible light, Infrared (IR) radiation and Radio waves.

The following are the principal gas molecules responsible for the absorption of various forms of light in our atmosphere:

UV radiation: Ozone molecules (O3), which are mostly located in the stratosphere, are the primary absorbers of UV light in the atmosphere.

Visible light interacts weakly with gas molecules in the atmosphere and is not greatly absorbed, but some of it can be scattered by air molecules, dust, and other particles.

Radio waves can flow through the atmosphere largely unaltered, but they can be absorbed by specific gases, such as water vapour, which can degrade radio transmission quality.

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in the united states one can find semidiurnal tides along the: question 32 options: atlantic coast. gulf of alaska. gulf of mexico coast. florida keys. pacific coast.

Answers

In the United States, one can find semidiurnal tides along the Atlantic coast, Gulf of Mexico coast, and the Pacific coast.

Semidiurnal tides are characterized by two high tides and two low tides occurring in approximately equal intervals within a tidal day, which is about 24 hours and 50 minutes.

Along the Atlantic coast of the United States, from Maine to Florida, as well as the Gulf of Mexico coast, semidiurnal tides are commonly observed. These areas experience two high tides and two low tides each day.

On the other hand, along the Gulf of Alaska and the Florida Keys, the tides are typically mixed or diurnal, characterized by one high tide and one low tide each day.

The Pacific coast of the United States, including states such as California, Oregon, and Washington, also experiences semidiurnal tides, similar to the Atlantic coast and Gulf of Mexico coast.

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In the United States, one can find semidiurnal tides along the Atlantic coast and the Gulf of Mexico coast. The semidiurnal tides occur twice a day and are characterized by two high tides and two low tides of nearly equal height.

In the United States, one can find semidiurnal tides along the Atlantic coast. Semidiurnal tides occur twice a day and have two high tides and two low tides of nearly the same height. Along the Atlantic coast of the United States, semidiurnal tides are caused by the gravitational pull of the Moon and the Sun on the Earth's oceans.The Gulf of Alaska, Gulf of Mexico coast, Florida Keys, and Pacific coast of the United States do not typically experience semidiurnal tides. The Gulf of Alaska and Pacific coast generally have mixed tides with a combination of diurnal and semidiurnal tides, while the Gulf of Mexico coast and Florida Keys tend to have diurnal tides with a single high tide and a single low tide each day.

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suppose a stream flows from its headwaters, through a reservoir to its mouth in the gulf of mexico. where is ultimate base level?

Answers

The ultimate base level in this scenario is the Gulf of Mexico. It represents the lowest point to which a stream can erode its channel.

The ultimate base level is the point where a river or stream enters the ocean or sea. In the given scenario, the stream flows from its headwaters, through a reservoir, and finally to its mouth in the Gulf of Mexico. Therefore, the ultimate base level for this stream is the Gulf of Mexico. The stream's erosion and sediment transport processes are influenced by the gradient of the stream and the ultimate base level, with the ultimate base level determining the maximum depth to which the stream can erode. Over time, streams can erode their channels and modify the landscape, responding to changes in the ultimate base level or to variations in their flow volume and sediment load.

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: 130) The era known as the "age of mammals" is the ________. A) Precambrian B) Paleozoic C) Mesozoic D) Cenozoic

Answers

Answer: D The Cenozoic

Explanation:

The Cenozoic Era, from 65 million years ago to today, is the age of mammals and flowering plants and is marked by global cooling. The extinction of the dinosaurs allowed mammals to diversify and grow in size during the Cenozoic.

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