1. the slowly increasing distance between south america and africa is due to blank.target 1 of 7 2. old faithful geyser at yellowstone national park in the united states acquires its energy from a blank.target 2 of 7 3. layered blankexposed by erosion can be seen when looking at the grand canyon in the united states.target 3 of 7 4. australia is composed of relatively old and thick blank.target 4 of 7 5. the extremely deep ocean marianas trench is a result of blank.target 5 of 7 6. blankfound in the atlantic ocean between north america and europe is composed of dense and relatively young rock.target 6 of 7 7. the earthquakes that occur in southern california generally occur along a blank

Answers

Answer 1

1. Sea floor spreading is the cause of the gradually expanding distance between South America and Africa.

The idea of a moving seafloor and how it carries the continents with it was first proposed in 1960 by Harold Hammond Hess of Princeton University and Robert Dietz of the U.S. Naval Electronics Laboratory. This phenomenon is known as plate tectonics. At the mid ocean ridges, where it occurs, plates separate, causing seafloor spreading, which leads to the production of new sea floor.

2. A hotspot provides the energy for Old Faithful Geyser in Yellowstone National Park in the United States.

All of Yellowstone's well-known geysers are powered by a sizable subterranean hotspot, according to researchers. Hot molten rock is present beneath the Yellowstone.

that result in the eruption's pouring.

3. When viewing the Grand Canyon in the United States, one may see layered sedimentary rock that has been exposed by erosion.

Lava flow and horizontally stacked rocks make up the Grand Canyon. Grand Canyon contains over 40 significant sedimentary layers that range in age from 200 million to 2 billion years.

4. Australia is made out of a thick, comparatively old continental crust.

The continental crust of Australia measures an average of 38 km in thickness, excluding the thinner margins, with a range of 24 to 59 km.

5. Subduction is what created the Marianas Trench, an exceptionally deep ocean trench.

The oceanic trench is a depression in the ocean floor that is both lengthy and small in breadth.

The crescent-shaped Marianas trench is renowned for having some of the planet's deepest spots. When two plates collide and one thrusts beneath the other, subduction occurs.

6. Dense, relatively young rock makes up the seafloor crust in the Atlantic Ocean between North America and Europe.

The outermost layer of the earth's lithosphere, also known as the sea floor crust or oceanic crust, can be found in the vicinity of mid-ocean ridges or sea floor spreading.

7. Southern California earthquakes typically take place atop a fault.

Huge portions of the earth's crust are moving, which is what is causing these earthquakes.

Learn more about sea floor spreading hear :

https://brainly.com/question/15225103

#SPJ4


Related Questions

What chemical reactions generate heat in the earth's interior?

Answers

Answer: There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements.

What is the definition of exothermic reaction?

In thermochemistry, an exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative." Exothermic reactions usually release heat.

Which reactions are exothermic?

The exothermic reaction is the opposite of an endothermic reaction. It releases energy by light or heat to its surrounding. A few examples are neutralisation, burning a substance, reactions of fuels, deposition of dry ice, respiration, solution of sulphuric acid into water and much more.

can formation be human made

Answers

Answer:

Yes, for example humans can make a  triangle if they stack up on eachother and have good stability.

Explanation:

Imagine that you are planning to conduct field work and need to record earthquakes. What is the minimum number of seismometers you will need in order to locate the earthquakes?.

Answers

You will need a minimum of three seismometers in order to locate the earthquakes.

A seismometer is a tool used to measure ground vibrations caused by earthquakes, volcanic eruptions, and explosions. These, a timing device, and a recording device make up a seismograph in most cases. During an earthquake, seismic waves are launched into outer space.

The epicenter of an earthquake can be located using seismographs from at least three different places. Seismometers allow for earthquake detection and monitoring by converting seismic wave vibrations into electrical impulses that may then be visualized as seismograms on a computer screen. Seismologists study earthquakes and can use this knowledge to determine an earthquake's precise location and magnitude.

To know more about earthquakes refer to:  https://brainly.com/question/248561

#SPJ4

What type of rock is formed through the solid-state alteration of a previously existing rock, by heating, pressure, and/or chemically active fluids?.

Answers

Metamorphic rocks are the rocks that are formed through the solid-state alteration of a previously existing rock, by heating, pressure, and/or chemically active fluids.

The word "metamorphosis" literally means "shape transformation." Rocks undergo metamorphism, which is the structural, chemical, and mineralogical adaptation of solid rocks to the physical and chemical conditions imposed at depth below the surface.

Usually, metamorphism takes place below the surficial zones, where the processes of cementation, compaction, and sedimentation occur. When a rock is exposed to conditions that are different from those in which it developed, metamorphism may occur.

A rock that was once one type of rock but changed to another under the action of heat, pressure, or fluids without going through a liquid phase is referred to as metamorphic (without completely melting).

Every time rocks experience changes in heat, pressure, or exposure to chemically reactive fluids, they undergo metamorphic transformations. These fluids include a variety of gases and liquids that exist under pressure inside the Earth, mostly water and steam.

To know more about metamorphic rocks:

https://brainly.com/question/2615484

The principal difference between a marine west coast climate and a Mediterranean climate is

Answers

In comparison to a Mediterranean climate, the West Coast's marine climate has milder annual temperatures. Due to the significant impact of midlatitude cyclones, Marine West Coast climates experience higher annual precipitation totals than Mediterranean climates, which are also more evenly distributed throughout the year.

The Mediterranean climate is what?

A temperate climate sub-type known as a Mediterranean climate, also known as a dry summer temperate climate Cs, is characterized by dry summers and mild, wet winters.

The Mediterranean Basin, where this climate type is most prevalent, gave rise to the name of the climate. Mediterranean climate zones are typically found between roughly 30 and 45 degrees north and south of the equator, along the western coasts of continents.

The subtropical ridge, which grows toward the hemisphere's pole during the summer and migrates toward the equator during the winter as a result of the seasonal poleward-equatorward temperature variations, is the primary contributor to the Mediterranean, or dry summer climate.

Learn more about the Mediterranean climate with the help of the given link:

brainly.com/question/9231311

#SPJ13

i need help finding the slope, if the sides are perpendicular and if it’s an isosceles right triangle. #1

Answers

Answer:

Isosceles right triangle

Explanation:

Determine the shape: isosceles right triangle

Answer: isosceles right triangle

thats all i can help with im afraid

the projected growth of african cities between 2010 and 2025 is attributed—

Answers

Both developed and developing countries are experiencing an increase in urbanization.

What were the attribution of Projects ?

The proportion of the world's urban population is expected to rise from 47% in 2000 to around 57% by 2050. Large cities in developing countries will account for more than 90% of future population growth.

Africa has experienced the fastest urban growth in the developing world over the last two decades, at 3.5% per year, and this rate of growth is expected to continue into 2050.

According to projections, some African cities will account for up to 85% of the population between 2010 and 2025.

Learn more about Projects here

https://brainly.com/question/1995075

#SPJ1

Write an equation of the line passing through point P(0, 1) that is parallel to the line y = 2x + 3
An equation is ____
Graph the equations of the lines to check that they are parallel.

Answers

Answer:

y= 2x +4

Explanation:

To be parallel means the line second line will never cross as u keep moving along.  2 lines that never cross that have same direction.

So when you shift the y intercept( the y point on graph) the new line is on top of the old line. But the new line will never cross since the slope is same.

Which of the following conclusions can be drawn based on information from the map?

Popular culture is widespread throughout southern Asia.
Popular culture is not likely to have diffused to Australia.
Indigenous culture is likely to thrive in central Africa.
Citizens in South America are exposed to very little popular culture.
North America and Australia are likely very isolated from popular culture.

Answers

do you have the map so i can awnser ur question

The scientific consensus is that human activities are responsible for the recent increase in global temperatures because they are strengthening the _______ effect.

Answers

The scientific consensus is that human activities are responsible for the recent increase in global temperatures because they are strengthening the  greenhouse effect.

There is broad scientific agreement that human activities are mostly to blame for the increase in global temperatures. Many scientific organisations' position statements and assessments of experts' opinions, many of which expressly concur with the Intergovernmental Panel on Climate Change (IPCC) synthesis reports, reinforce this consensus.

The increased greenhouse effect describes the heat brought on by increases in greenhouse gases caused by human activities. Since the beginning of the industrial era, the atmospheric concentration of carbon dioxide has grown by more than 30%, and it is presently the highest it has been in at least the last 650,000 years.

To learn more about global temperatures refer

https://brainly.com/question/5995940

#SPJ1

Study this image.



Which feature forms at this plate boundary?

Answers

The picture depicts the collision of two continents. Two continental tectonic plates collide when they come into contact with one another. One of the continental plates will slip beneath the other continental tectonic plates during a continental collision, while the other plate may shatter and be thrust upward.

What are the feature of plate boundary?

The Himalayan Mountains are one of the best illustrations of a continental-continental collision zone. The collision of two continental tectonic plates is what created these tallest mountain chains. When two continental plates collided, one of them broke apart and was driven upward, creating the tallest mountain chain on Earth.

The picture depicts the collision of two continents. Two continental tectonic plates collide when they come into contact with one another. One of the continental plates will slip beneath the other continental tectonic plates during a continental collision, while the other plate may shatter and be thrust upward.

The collision of continents is depicted in this image.

Some of the biggest mountain ranges in the world are the result of continental collisions.

Two continents are fused together when enormous slabs of crust (or two continental plates) clash. There are many major earthquakes that happen there.

The Himalayas are the most well-known example of a continent-continent collision zone (India collided with Asia).

The complete question is:

Study this image. Which feature forms at this plate boundary? mountains rift valleys volcanoes island chains

To learn more about plate boundary refer to:

https://brainly.com/question/21668651

#SPJ13

Studies reveal that in countries such as Paraguay, around 30 percent of the population has access to the Internet. But people living in rural areas have little access to the Internet. This is an example of . In countries such as Iran and China, people cannot freely access all websites. This is an example of .

Answers

Studies reveal that in countries such as Paraguay, around 30 percent of the population has access to the Internet. But people living in rural areas have little access to the Internet. This is an example of lack of basic infrastructure.

In countries such as Iran and China, people cannot freely access all websites. This is an example of Socio-political barriers.

What causes socio-political barriers?

Social barriers are settings in which individuals are born, develop, live, study, work, and age - also known as social determinants of health - that might lead to diminished functioning in persons with disabilities. Following are some instances of societal barriers: Disabled people are significantly less likely to be employed.

Some barriers are intentionally put in place by the government in communist states.

Learn more about Socio-political barriers:
https://brainly.com/question/10892173
#SPJ1

elaborate : how might the seasons affect human activities?

Answers

humans are more likely to get less happy during the fall and winter season. According to a study on human behavior based on seasons, humans are more likely to suffer from seasonal affective disorder, or SAD starting during late fall and early winter.

In an effort to understand the diffusion of language, the Sedentary Farmer Theory__________.

Answers

In an effort to understand the diffusion of language, the Sedentary Farmer Theory was given by British archaeologist Colin Renfrew in 1987.

What was the Sedentary Farmer Theory?

The Proto-Indo-European dispersion started in Neolithic Anatolia, according to the Anatolian hypothesis, also known as the Anatolian theory or the sedentary farmer idea, which British archaeologist Colin Renfrew initially put out in 1987.

It is the principal rival of the Kurgan hypothesis, sometimes known as the steppe idea, which is more well-liked among academics. According to the theory, Indo-European languages started to diffuse peacefully throughout Europe from Asia Minor at approximately 7000 BC as farming technology advanced during the Neolithic period (wave of advance).

As a result, Indo-European languages would have been spoken by the majority of Neolithic Europeans, and later migrations would have replaced these languages with other Indo-European languages.

Learn more about the Sedentary Farmer Theory, here:

https://brainly.com/question/19214051

#SPJ1

What has globalization done to influence income and wealth inequality in the United States? Include the influence of the Industrial Revolution and geography in your answer. Why did Europe develop first?

Answers

Globalization's rise in recent decades has increased income inequality in the U.S. while benefitting the executives, according to a study done by the National Bureau of Economic Research which directly connects globalized commerce with a prominent wage gap in the country.

The global trade dynamics encountered a huge shift during this time frame – particularly in the 1990s and 2000s, which saw the signing of the North American Free Trade Agreement (NAFTA) and China joining the World Trade Organization. Both events have been acknowledged by globalization critics, especially by President Donald Trump, as key turning points for the U.S. economy.

Although, Europe represents only about 8 percent of the Earth's landmass, from 1492 to 1914, Europeans colonized more than 80 percent of the entire world, which started with the gunpowder technology. Though it was invented in China and used in Japan and Southeast Asia, the Europeans excelled at using it, which catered to their successful conquests.

Gunpowder was very important for conquering territory as it allows a small number of people to impose a lot of influence. The technology grew to include more than just guns: armed ships, fortifications that can resist artillery, and many more, and the Europeans became the finest at using these things.

Learn more about globalization and income inequality in the US here:
https://brainly.com/question/4100839

Will marine food sources keep up with human population growth?

Answers

The marine food sources will not be able to keep up with human growth population.

There isn't much space for hope. There doesn't seem to be enough water available for agriculture to produce enough food to feed the world's 9200 million inhabitants.

Already under water stress, the current population is made worse by the interaction between population expansion and climate change. Additionally, since the middle of the 1980s, worldwide fisheries landings have been dropping, which has added to the current crisis in food production.

The food-producing industry least dependent on the availability of freshwater, marine aquaculture (hereinafter mariculture), will be used to help feed humanity in the twenty-first century.

Although there is still room for growth in northern temperate regions, despite significant intensification (such as a 10-fold increase in the yield of Chinese freshwater aquaculture in 20 years), freshwater aquaculture is becoming increasingly spatially constrained in the tropics and subtropics due to rapid human population growth and the concomitant high requirements for direct use of water and land.

To know more about Population growth:

https://brainly.com/question/18415071

If the earth’s tilt on its axis were to increase by 20 degrees, at what latitude would you find the tropic of capricorn?.

Answers

The tropics are at 43 degrees 27' and the polar circles are at 45 degrees 27'. It would be an interesting evolution to adapt to the rapid and dramatic changes in the seasons.

More tilt means more severe seasons—warmer summers and colder winters; less tilt means milder summers and winters. The axial tilt of the Earth (also known as the obliquity of the ecliptic) is approximately 23.5 degrees. Because of this axial tilt, the sun shines at different angles on different latitudes throughout the year. This is what causes the seasons. Uranus has the solar system's largest axial tilt. Seasons are caused by this tilt.

Learn more about seasons here:

https://brainly.com/question/19009677

#SPJ4

What would happen if the earth's orbit were a square, triangle, rectangle, etc.?

Answers

Answer:

Different time zones (majority) and different climate.

Earth would rapidly crumble into a hot, spherical object.

Gravity would not permit a sustained triangular shape. Nor a pyramid. Nor square.

Spherical. Gravity curves things toward the center. The points of a pyramid/triangle would fall toward the flat sides, nearest the masses center.

It would be hot because of the impact of matter falling violently toward its rest.

Today, population policies in India emphasize __________.
A.
forced population control
B.
family planning education
C.
limiting families to one child by law
D.
advancing the social status of men

Answers

Answer:

A.

forced population control

The answer that your looking for is A

A place such as central pennsylvania, home of penn state’s university park campus, is fairly typical of the world in terms of rainfall. What happens to the rain that falls on central pennsylvania each year?.

Answers

Rain that falls on central Pennsylvania each year most of it is evaporated.

Life depends on water, and life is highly adept at utilising it. Trees consume practically all of the rain that falls when their leaves are out, and tree roots reach deep into the soil and draw up some of the water from cold-season rain and snowmelt.

Even though plants still receive the majority of water, a sizable portion of it does sink into the ground and run to streams (perhaps 1/3 of the total). Although much of the land is not paved and little water flows across natural surfaces to streams, the quantity of water that does flow across the surface is growing as we pave the terrain.

Direct rainfall into streams, lakes, and rivers is minimal because they make up such a small portion of the landscape. Although "frackers" need water mixed with additional chemicals for the recovery of natural gas, they do not use nearly as much water as trees do. Additionally, even if the precise chemical make-up of the frack waters is a trade secret, we are confident that it does not consist of soda!

Learn more about rain:

https://brainly.com/question/26690779

#SPJ4

In an organizational chart that shows how departments on a cruise ship are related, entertainment comes under the
deck department
engine department
hotel department
shore department

Answers

I don’t know anything about cruise ships but my guess is Hotel Department

The other answer choices are probably regarding the actual function of the ship and inner machinery that is limited to only the employees

Hope this helps

Name all the labeled land and water areas that the equator crosses.

Answers

The countries(land areas) through which the equator passes are :

1. Ecuador

2. Columbia

3. Brazil

4. Sao Tome & Principe

5. Gabon

7. The Republic of Congo

8. The Democratic Republic of the Congo

9. Uganda

10. Kenya

11. Somalia

12. The Maldives

13. Indonesia

14. Kiribati

The water (water areas) bodies through which the equator passes are :

1. The Atlantic Ocean

2. The Pacific Ocean

3. The Indian Ocean

The equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the north pole and the south pole. At 0 degrees latitude, an equator divides the planet into a northern hemisphere and a southern hemisphere.

Learn more about another circle that separates the planet into the eastern and western hemispheres.

brainly.com/question/5714244

What does it mean that the world is “getting smaller?” Explain below.

Answers

Answer:

There is less green/natural space on this planet, and it is being replaced by urban infrastructture. Also could mean that the world is overcrowded and the population is increasing too fast.

Explanation:

Suppose you had a job you did not like. If you read that the economy was in the
contracting phase of the business cycle, would you be more or less likely to quit your job and
look for a new one? Why or why not?

Answers

I would resign from my position because I am confident that the economy would improve and I will be able to do so again.

Economy: Whether an entity is a large nation or a tiny hamlet, its economy consists of all the activities involved in its creation, use, and exchange of goods and services. Each economy is unique. Each is influenced by its particular geography, laws, cultures, histories, and resources.

Business Cycle: A business cycle is the cyclical growth and contraction of a nation's economy, primarily as measured by its GDP. Governments make an effort to regulate business cycles by increasing or decreasing spending, raising or lowering taxes, and changing interest rates. Business cycles can affect people in many different ways.

To learn more about Business Cycle, visit the following link:

https://brainly.com/question/20335740

#SPJ9

Imagine that you are planning to conduct field work and need to record earthquakes. What is the minimum number of seismometers you will need in order to locate the earthquakes?.

Answers

I would need three as a minimum number of seismometers, in order to locate the earthquake.  

The P- and S-wave arrival times at various seismometers are utilized to pinpoint the earthquake's exact location. The separation of the P- and S-wave arrival times indicates how far away the earthquake is from the seismometer, providing we know the relative speeds of the P- and S-waves.

So, concludingly, in general, tracings are made at three different or separate seismic stations ( that record the ground moments and display them in digital form as digital data), which are needed to locate the earthquake center point.

To know more about Seismographs: https://brainly.com/question/1828024

#SPJ4

Determining what bands of light on the spectrum a star absorbs can identify what
temperatures
planets
elements
comets
are in a distant star.

Answers

The spectrum a star absorbs can identify are in a distant star. Astronomers can identify an element by its spectral lines, as well as its temperature and density within the star.

The magnetic field of the star can also be shown via the spectral line. How quickly the material is travelling can be determined by the line's spectrum. Because stellar spectra resemble blackbodies, it is possible to determine a star's temperature incredibly precisely by taking brightness measurements using two separate filters. Astronomers attain a perfect temperature: Compare the ratio of red to blue light after measuring the brightness of a star with two filters.

To learn more about spectrum, click here.

https://brainly.com/question/6836691

#SPJ1

what the median for 150 95 210 45 and 55

Answers

The answer is 95

Explanation
We have to put them in order and count one from left and one from right until we get the middle number

ayout References
Mailings Review View Help
(4 points)
2. What are the identities of each unknown mineral?
Answer:
Mineral Number
8381121 (2) Word
Tell me what you want to do
2
3
4
Identity

Answers

The identities of each unknown mineral are feldspar, quartz, and mica.

What is mineral?
A mineral or mineral species is, generally speaking, a solid chemical compound with a very well-defined chemical composition and a particular crystal structure that occurs naturally in pure form in geology and mineralogy. Compounds found only in living creatures are typically not considered minerals according to geological definitions. However, some minerals, like calcite, are frequently biogenic or, in the context of chemistry, are organic molecules (such as mellite). Additionally, living things frequently produce inorganic minerals (like hydroxylapatite), which are also found in rocks. Rock, which is defined as any bulk solid geologic substance that is sufficiently massive and sufficiently homogeneous, is not a mineral. A rock can be made of a single type of mineral or it can be an amalgam of two or more different mineral types that have been spatially separated into different phases.

To learn more about mineral
https://brainly.com/question/15844293
#SPJ9

Why are the majority of central america’s people concentrated in the central highlands?.

Answers

Answer:    rural peripheral part of the are, where most people worked the  land area.

Explanation:

Which phrase tells how the hawaiian culture was characterized for centuries before europeans and americans came to the hawaiian islands?.

Answers

Which phrase tells how the Hawaiian culture was characterized for centuries before Europeans and Americans came to the Hawaiian Islands?

hunting and gathering for food, and religious sacrifice of animals

irrigated plantations and a system of strict religious taboos

importing food from Asia and written religious scriptures

small, primitive farms and ancestor worship

Complete question

The Hawaiian way of life turned into characterized for: irrigated plantations and a machine of strict non secular taboos

The required details for  Hawaiian way in given paragraph

Hawaiian way of life is primarily based totally round age-antique legends and superstitions, starting from conventional gods and goddesses like Maui (a demi-god who pulled up the island from the ocean bed), Pele (a depraved and misleading volcano goddess) and her sister Poliahu (a snow god). Hawaiian way of life might also additionally preserve among the solutions sought in a unexpectedly converting world. The spirit of aloha – being withinside the presence of and sharing the essence of life – teaches us classes of peace, kindness, compassion and obligation to destiny generations.

As the Native Hawaiians used their assets inside their ahupua'a, they practiced Na Waiwai, or precious values, and understood the deeper which means of the phrases aloha (respect), laulima (cooperation of many hands) and malama (stewardship) which ended in all and sundry dwelling pono, or doing proper through one another.

To know about  Hawaiian way in given link

https://brainly.com/question/6771463

#SPJ4

Other Questions
H-C=C-H. How many pairs of shared electrons between two carbon atoms and _________ pairs of shared electrons between the carbon and hydrogen atoms The blueprint for the morenos living room has a scale of 2 inches= 5 feet. The family wants to use a scale of 1 inch= 3 feet. What is the width of the living room on the new blueprint 82.8 cm measured to the nearest tenth of a cm. before European colonization, how did indigenous people protect themselves from catastrophic wilfires? help me pleaseeeeeeeeeeeeeeeeeeeeeeeee !!! an auditor of a nonissuer should request that management provide written representations regarding uncorrected misstatements in the financial statements that state dualism group of answer choices allows for the possibility that the mind could survive the death of the body does not allow for the possibility that the mind could survive the death of the body is not supported by religious orthodoxy has more explanatory resources than materialism regarding the brai Which achievement was made during the Mauryan Empire?1. the establishment of an efficient postal system2. the creation of Arabic numerals3. destruction of the Great Wall of China4. the creation of the border state of Bactria I have to send you the question when assessing a client withdrawing from alcohol, the nurse notes that the client is anxious, experiencing nausea, is restless, and has a tremor when both arms are extended. what should the nurse should do next? 17) A brand of coconut oil is updating its packaging. The old rectangular container was 1 foottall, 4 inches long and 2.5 inches wide, their new cylindrical container has a 4.5 centimeterradius and is 30 centimeters tall.a) Determine the volume of the rectangular container, 3 points(if needed round the final answer to the nearest hundredth.)b) Determine the volume of the cylindrical container. 3 points(if needed round the final answer to the nearest hundredth.)c) The company charges the same amount for each container. Is one of the containers abetter buy? Explain and show work that justifies your answer. 3 points Write TWO facts about Pi Factor completely x^2+10x+21 The equation of a curve is xy squared minus 2x square y squared equal 0. Find the gradient of the tangent to the curve at (1,2)? Order the steps of the mercantile system ? your brain registers the painful sensation caused by you touching something that stings your hand. what part of the body control mechanism is represented by this analysis of the signal your nerve cells sent? what an insurance companys primary revenue source? group of answer choices premiums and bond underwriting fees net interest income fees charged on assets under management premiums and investment returns claims on insurance policies Using P.E.M.D.A.S, how do I solve this? Why was the United Nations established at the conclusion of World War II?A. The League of Nations had proven ineffective in preventing major global conflicts.B. The threat of communism led democratic nations to join a collective defense treaty.C. Many nations joined a single market in order to compete in the new economy.D. An organization to oversee the rebuilding of Europe was widely desired. How do I solve this problem? To find the distance AB across a river, a distance BC=250 is laid off on one side of the river. It is found that B =119 degrees and C=27 degrees. Find AB