Why is the outer core the only layer in earth that is molten? the temperature is high enough but pressure low enough to melt iron. the pressure decreases within earth, thus allowing iron to melt. the temperature is high enough but pressure low enough to melt olivine. the pressure increases within earth, thus allowing iron to melt?

Answers

Answer 1
The appropriate answer is a. the temperature is high enough but pressure low enough to melt iron. The earth's core is composed of two layers; the inner and outer core. Both layers are composed mainly of iron and nickel. The main difference between the two layers is that the inner core is solid and the outer core is liquid. The inner core is solid because of the pressure created by the overlaying layers; the outer core, mantle and the crust. The inner core is however hotter than the outer core. 
Answer 2
The temperature is high enough but pressure low enough to melt iron.

Related Questions

Mountains that begin when molten material reaches Earth’s surface through a weak area of crust are fault-blocked mountains. Please select the best answer from the choices provided T F

Answers

Mountains that begin when molten material reaches Earth’s surface through a weak area of crust are fault-blocked mountains. This is FALSE. These are volcanic mountains. 

The answer is False.

Why was king leopold 2 interested in colonizing Africa

Answers

Answer: Leopold attempted to convince the Belgium government to support colonial expansion around the Congo Basin. The government being indecisive led to Leopold’s independent act of creating a colony himself.

how does the north Atlantic current affect farming in the marine west coast climate of Europe?

Answers

The North Atlantic Current is a warm current. It brings in warm and moist air masses along the west coast of Europe. It also provides relative stability in the temperatures without extremes in the summer and the winter.

The conditions that this ocean current provides contribute to a fertile soil, enough precipitation, and nice climate, so the farming has nice predispositions to develop in this areas.

The plants that are very needy of water, deep and fertile soil, and do not require a lot of Sun light thrive in this areas, so no wonder that this areas are heavily used for agriculture.

how do the cardiovascular system and respiratory system work with each other in a frog to keep it alive

Answers

They work together by keeping it alive and not dieing

What is one way the tilt of the Earth's axis causes the seasons? A. The tilt of the axis brings the Earth closer to the sun in summer. B. The tilt causes the amount of time the sun shines each day to be greater on the part of the Earth where it is winter and less where it is summer. C. The tilt causes the Earth's rotation to slow down in the summer and speed up in the winter. D. The tilt causes the sun to shine more directly on the part of the Earth where it is summer and less directly where it is winter.

Answers

The answer is D. The tilt causes the sun to shine more directly on the part of the Earth where it is summer and less directly where it is winter.

One effect of the Earth's axis' tilt on the seasons is The tilt of the Earth causes the sun to shine more directly in the summertime and less directly in the wintertime. As a result, choice (D) is accurate.

What is meant by Earth's axis ?

The Earth's axis is currently tilted 23.4 degrees, or almost halfway between its extremes, and this angle is steadily getting smaller over the course of a 41,000-year cycle. It last reached its maximum tilt roughly 10,700 years ago, and it will do so again in about 9,800 years.

As obliquity decreases, it gradually contributes to the mildening of our seasons, resulting in increasingly warm winters and cooler summers that, over time, allow snow and ice to accumulate into enormous ice sheets at high latitudes.

As the amount of ice cover grows, more of the Sun's radiation is reflected back into space, which encourages even further cooling.

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Which action has not helped the Baltic states transform their economies? privatizing industries encouraging foreign investment increasing trade with Russia increasing trade with Europe

Answers

Increasing trade with Russia has not helped the Baltic States transform their economies. Relying on the belief that their economic market would converge with Europe’s, the Baltic States found themselves drowning in their credit debt. Furthermore, the global recession hit the Baltic States hard and they are now floundering. Increasing trade has shown no effects of mitigating the economic downfall.

The correct answer is - increasing trade with Russia.

Increasing trade with Russia is not a step that was made by the Baltic states in order to improve their economies, instead they started to focus more and more on increasing the trade with the EU. Of course, they do have significant trade with Russia because they are neighbors and Russia has lot of natural resources, but they have tried to balance it in order to not be totally dependent by them.

Which geographic features are associated with a divergent boundary?
Multiple Choice
(a)hydrothermal vents
(b)continental mountains
(c)ridges
(d)subduction trench
(e)rifts

Answers

i think that the answer is c, ridges!

C. Ridges and E. Rifts

In North Africa and Southwest Asia, the economies of many nations rely heavily on this natural resource. fertile soil

Answers

its a answer I had the question on e2020 what where the answer choices ?

Answer:

the answer is petroleum

Explanation:

What ended warfare between the French and English between 1689 and 1763?

Answers

i think the colonial wars (king william’s war, queen anne’s war, etc.)

Warfare between the French and English, between 1689 and 1763, ended with _____.

 France surrendering all of its empire in Canada

Earth is 149.6 billion meters from the sun and takes 365 days to make one complete revolution around the sun. mars is 227.9 billion meters from the sun and has an orbital period of 687 days. what is the ratio of earth's centripetal acceleration to mars's centripetal acceleration?

Answers

We need to assume that the orbits are circular; this is a very good approximation and do not hesitate to adopt it. We need then to consider the basic equation of circular motion that relates centripetal acceleration, angular velocity, mass, radius and force:
[tex]F=m*v^2*r[/tex] . We also have the basic equation of Newton, F=ma. By checking, we see that for each planet we have that a=v^2*r where v is the angular velocity. v=[tex] \frac{2\pi}{T} [/tex] where T is the orbital period, hence we have that a=[tex] \frac{4\pi^2*r}{T^2} [/tex]. Denote with the index 1 the Earth case and with 2 the Mars case. We have then that [tex] \frac{a_1}{a_2} = \frac{4 \pi^2*r_{1}*T_2^2}{4 \pi^2*r_{2}*T_1^ 2}[/tex]. Substituting the known values in a calculator, we get the result: the centripetal acceleration of earth is 2.32 times greater than that of Mars.

2.33

Centripetal acceleration is calculated with ac=v2r where v is the orbital speed and r is the radius of the orbit. First, find the orbital speed using the distance traveled in one period: v=2πrT where 2πr is the circumference of the orbit and T is the period. The centripetal acceleration can then be expressed as ac=4π2rT2. The ratio of Earth’s acceleration to Mars’s acceleration is ac,Eac,M=rE/T2ErM/T2M=149.6×109 m/(365 d)2227.9×109 m/(687 d)2=2.33.

Other than oil,Saudi Arabia has of which the following resources

Answers

they have the world's second-largest proven petroleum reserves and the country is the largest exporter of petroleum. It has also the fifth-largest proven natural gas reserves.

To preserve the life-saving materials in the Amazon basin, the Brazilian government is working to stop ____

Answers

To preserve the life-saving materials in the Amazon basin, the Brazilian government is working to stop deforestation.

Hope I helped :-)

The permanent removal of more woodland

HELP FAAASSSSTTT!!!!!!!
The entire circle in a pie chart equals:
A. 100%
B. 360°
C. all of the above
D. none of the above

Answers

I would say that the entire circle in a pie chart represents mainly 100% as pie charts are designed to show the portions of the total that say for taxes what % is spent on different services like say education, housing, medical etc. Of course it also represents 360 degrees but the pie chart uses % not degrees. So to sum it up, the pie chart represents all of the above.
represent each part of the data as a proportion of 360, because there are 360 degrees in a circle.


so B--360°


Hope this helped :) 


Have an AMAZING day!!!!!!!!!!! <3

What caused the Caribbean islands to have varying landforms

Answers

Differing physical forces is the correct answer :)

Answer:differing physical forces

Explanation: yes

The Thar Desert is located __________ on the Indian Subcontinent. A. in Sri Lanka B. along the base of the Himalayas C. in northwest India D. in southern India

Answers

c.in the northwest India.

The Thar Desert is located in northwest India on the Indian Subcontinent. Thus, option 'C' is the correct option.

Where is Thar desert located?

The Great Indian Desert sometimes referred to as the Thar Desert, is a dry area in the northwest of the Indian subcontinent that spans 200,000 km2 across both Pakistan and India. It is the ninth-largest hot subtropical desert in the world and the twentieth-largest dessert overall. 15% of the Thar Desert is in Pakistan, while 85% of it is in India. The Thar Desert makes up around 4.56% of India's total land area.

The Indian state of Rajasthan hosts more than 60% of the desert, and it also includes parts of Gujarat, Punjab, and Haryana. Sindh and Punjab are included in the part of Pakistan. The Thar Desert is bordered to the north, west, and northeast by the Indo-Gangetic Plain, to the south by the Rann of Kutch, and to the east by the Aravali Range.

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What are some limits associated with the use of normals?

Answers

Normals (the average temperature based on where you live)

Agricultural diversity can be limited by normals. You may not be able to grow many different types of crops in a location with very extreme temperatures/wind speed. You can also grow crops in the tropics in which you cannot grow anywhere else due to their normals.


which best explains why this extrusive volcanic rock does not have visible crystals

Answers

Extrusive volcanic rocks are formed on the surface of the earth and cool relatively quickly from lava erupted from a volcano. The rapid cooling of lava on the surface does not allow for visible crystals to form. The crystals are minute and most can only be seen under a microscope. Basalt is an example of an extrusive igneous rock.

Intrusive igneous rocks are formed when magma cools within the crust. This magma cools slowly and so crystals develop in these rocks. Granite is an intrusive igneous rock.

The options are:

A. It is homogeneous and composed of a soft mineral.

B.  It does not contain atoms of any Earth minerals.

C.  It cooled down before large crystals could form.

D.  It wasn’t exposed to friction during its formation.

But the answer is

C.  It cooled down before large crystals could form.

I took the Plato test and this is what I learned and what most people seem to pick.

which of the following countries is part of central america

Answers

There are 7 different countries, Guatemala,Belize,Honduras,El Salvador,Nicaragua,Costa Rica and Panama.

So A would be your answer.

The correct answer is A. Nicaragua

Explanation:

In geographical terms, Central America includes seven countries located between North America and South America, these countries are bordered by the Pacific Ocean (west) and the Caribbean Ocean (east). Countries located in this region of America include Nicaragua, Panama, Honduras, Guatemala, Belize, El Salvador, and Costa Rica. This means, from the options provided the only one that is part of Central America is Nicaragua, which is indeed the biggest country of this region. Also, other options are incorrect because Uruguay, Argentina, and Colombia are part of South America.

After the landslide Communist victories in elections throughout Eastern Europe after WWII, why didn't the US try to stop the spread of Communist influence then?

Answers

the US implemented the Containment Policy, which they believed isolation would lead to the eventual death of communism.  

Final answer:

After WWII, the US could not prevent the spread of communism in Eastern Europe due to a complex interplay of factors, including socioeconomic instability and popular support for communism in various nations. US containment policy involved the Marshall Plan and military alliances but was limited to nations like China with strong communist movements. The ultimate fall of communism was due to grassroots efforts rather than solely top-down interventions.

Explanation:

Following World War II, the United States was determined to promote stability, democracy, and open trade to counter the spread of communism. Despite fears of postwar economic weakness fueling the popularity of communism, the US initiated large-scale economic assistance through the Marshall Plan, investing $13.3 billion to rebuild Western Europe. The Soviet Union and Eastern European nations rejected these offers, steering towards communism with Soviet military support. The US strategy focused on containment through economic aid and military alliances, such as forming NATO in contrast to the Warsaw Pact. Nonetheless, domestic factors within countries like China, where communists gained popular support among the poor and landless due to promises of land and wealth redistribution, limited the effectiveness of US efforts.

The fall of communism is attributed to grassroots efforts by global citizens, challenging the perception of US presidents and Soviet Premiers as the solely critical agents of change. Efforts such as the Truman Doctrine and Eisenhower's interpretation of the 'Domino Theory' influenced US policies throughout the Cold War, including the provision of aid and military support to suppress communism in various regions.

Socioeconomic instability following World War II made Communist ideologies attractive in Europe and beyond, leading to the US stepping up economic aid to thwart this spread. However, the rise of independent movements in former colonies during the 1950s and 1960s often viewed the US with suspicion due to its support for its former European colonizers.

Later efforts to contain communism under the Kennedy administration included not only military aid but also substantial economic recovery investments in Western Europe, with a focus on democratic structure, exemplified by the recovery of West Germany into a prosperous democracy.

Prior to the rule of Czech people by the Hapsburg monarchs, the people were under the control of the _____. Holy Roman Empire Nazi occupation Hungarian Empire Soviet Union

Answers

Prior to the rule of Czech people by the Hapsburg monarchs (the junior Austrian branch of the House of Habsburg), the people were under the control of the HOLY ROMAN EMPIRE. Under the rule of the Habsburg monarchs, the Czechs were numerically the third strongest ethnic group in the Monarchy.

Prior to the rule of Czech people by the Hapsburg monarchs, the people were under the rule of Holy Roman Empire.

Answer: Option A

Explanation:

Holy roman empire which was a multi ethnic complex of territories in the western and central Europe developed in the early middle ages and dissolved in the year 1806.

It included the Kingdom of Bohemia, Kingdom of Italy, Kingdom of Burgundy and numerous other territories. After it's dissolution Hapsburg monarchs took over.

Look at the map above. All of the following climate regions are represented in Canada except __________. A. arid B. tundra C. humid continental D. marine west coast

Answers

The answer is letter A. Canada is a country that has a low temperature so you can conclude that it is a humid continental and a cold one. They have a marine west coast that brings a cool summer. Tundra is a type of tree that can survive in a low temperature. And an arid is described as a dry land, that is why this is the only climate region that Canada cannot have due to its temperature.

Answer:

The answer is option A.

Explanation:

Canada is a nation that has a low temperature so you can reason that it is a damp mainland and a cool one. They have a marine west drift that brings a cool summer. Tundra is a sort of tree that can get by in a low temperature. What's more, a dry is portrayed as a dry land, that is the reason this is the main atmosphere district that Canada can't have because of its temperature.

Which of India’s regions is the most highly populated

Answers

The correct answer is - Delhi.

The Delhi region is occupying an area on just over 1,484 km², and it has a population of almost 17 million people. The density of the population in this region comes to 11,297 inhabitants on a square kilometer, and that is the highest density of population in India if we take the regions as a measurement. This region is so highly populated because it is the biggest political and administrative center in the country, so lots of people are moving towards this region in hope of finding a better job and having a better life, which unfortunately is very often not going as planed and most of the people end up living in poverty.  

Answer:

As India's urban population grows at a rapid pace and Delhi becomes the second most populous city on the planet, the Asian giant is also the country with the most rural inhabitants.

This is due to the natural growth of the population, which presents Indian cities with 45% of their new residents, compared with the 20% or 30% who emigrate from the countryside.

The Subcontinent Sharing that in 1947 gave rise to the present territories of India and Pakistan caused the largest migratory movement in history.

In a short period of time, more than 10 million people moved to one side or the other of the border.

A month after India declared independence, the capital of the country grew from 700,000 to 1.5 million, but it was still not demographically comparable to the big cities of the time.

Over the past two decades, Delhi's population has doubled to its current 25 million residents, making it the second largest city in terms of number of people after Tokyo, according to a report recently published by the United Nations.

With the arrival of new residents, the city has expanded, while in areas like New Delhi the population has declined, said the migration expert.

However, the creation of new urban centers within the metropolitan area of ​​the city is not the solution to the biggest problem of mass demographic growth: housing. Between 15 and 20 percent of Delhi's population lives in slums, where the lack of space makes whole families live in two or three square meter dwellings.

this fossil was found in a dry, mountainous area. What can you infer about how the area has changed over time?

Answers

Fossils are the remains of plants and animals that have been preserved for millennia in stones under the Earth's surface. They contain the long chapters of the history of our Earth. Fossils tell us what the earth looked like many millions of years ago, what kind of animals and plants lived on its surface and how it was changing. Fossils show us a history of over a billion years old.


From the fossil from a dry, mountainous area we can conclude that the area was once underwater and over time the soil has risen as result of continental drift and uplift. So, a mountain was once the bottom of a prehistoric ocean or sea.

A fossil found in a dry, mountainous area suggests a past environment significantly different from the present, such as former marine habitats or warmer climates supporting different plant life. Fossil evidence, like animal remains and plant imprints, informs us about previous ecosystems, climate changes, and geological transformations.

Finding a fossil in a dry, mountainous area can indicate significant changes in the region's environment over geological time. For instance, fossils of marine organisms on Mount Everest suggest that the highest peak was once an ocean floor, implying a dramatic uplift of the earth's crust. Similarly, when plant fossils are discovered in a place like Antarctica, which is now almost entirely covered in ice, it indicates that the region was once much warmer, with plant life that is vastly different from current conditions. Through fossil evidence, we learn about ancient climates, ecosystems, and geological processes.

Layers with lots of fossil imprints of leaves and branches without sedimentary structures in fine-grained, dark rocks can signify calm, likely anoxic environments where delicate organisms could be buried quickly and become fossils. This, combined with erosion, could reveal these fossils, such as dinosaur footprints at Dinosaur Ridge in Colorado. Transformation of landscapes like the Olorgesailie region in Kenya from lakebeds to grasslands suggests not only changes in climate but also in fauna due to adaptation or extinction.

Why is the Rhine River important to Western Central Europe? It contains large coal deposits. It is Europe's largest river. It is the leading commercial river in the world. It is the only European river that flows from west to east.

Answers

Hello!

There are many reasons why the Rhine River is important to Western Central Europe.

The Rhine River is Europe's most important trade routes. Cargo is transported along it and it is a very busy area for trade and shipping. It is also a tourist site. The Rhine River serves as a transportation route for goods. 

The correct answer should be C. It is the leading commerical river in the world. 

Answer:

It is the leading commercial river in Europe.

Explanation:

What energy source is earth using primarily for its internal heat?

Answers

The energy source that is being use for earths internal heat is the sun

As a market moves from a single seller to a competitive one, a product's price _____.

Answers

The product's price decreases.

I hope that helps! 

Price is dependent upon the characteristics of both demand and supply. An equilibrium price is a balance of demand and supply factors.  Changes in the equilibrium price occur when either demand or supply, or both, shift or move. In this scenario, as a market moves from a single seller to a competitive one, a product's price decreases. The greater the competition the lower the price of the product, because each company wants to attract customers and lower price is the most influential factor.

Explain what you think it means that Mars is a privately held company and Hershey is a publicly held company.

Answers

Final answer:

Mars being privately held means it's owned by a select few and its shares aren't available for public purchase. Hershey, being publicly held, means it's shares are freely traded on public stock exchanges, allowing for wider ownership.

Explanation:

When we say that Mars is a privately held company, it means the company's shares are not available for public investment on the stock market. This generally suggests that the company is owned by a few individuals, often relatives or founders. On the contrary, when we say Hershey is a publicly held company, it refers to that Hershey's stocks are traded on the public stock exchanges, so the public can buy shares, and thus have a claim on the profits of the company. This means the ownership is distributed among numerous shareholders.

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Vietnam has a tropical monsoon climate. During the rainy season warm air comes in from the north and rises, allowing cooler air and rain clouds to move in. Where does the warm air MOST LIKELY come from?

Answers

The warm air that comes in Vietnam during the rainy season is most likely from the Pacific Ocean. In fact, tropical storms that pass over Vietnam form over the Pacific Ocean when the water warms up. The Pacific Ocean is at its warmest from June to November and the warm air and typhoons move inland over Vietnam. 

Answer:

The gobi desert

Explanation:

I saw it on study island

Which U.S. government office maintains maps of flood risks

Answers

its the national flood insurance program.

Which of the following mountain ranges, labeled with the number 2 on the map above, extends over 330 miles and has numerous mineral resources? A. the Ural Mountains B. the Balkan Mountains C. the Caucasus Mountains D. the Carpathian Mountains

Answers

Answer: the Balkan Mountains

Explanation:

The ranges in miles of the other options are:

-Ural Mountains, 1553 Mi

-Caucasus Mountains, composed of two ranges, the Greater Caucasus and the Lesser Caucasus, 100 Mi

-Carpathian Mountains, 932 Mi

-Balkan Mountains, 340 Mi

Mountain ranges are sources of several mineral and forestal resources, and the longer the range the more resources it provides, as it is the case of the Ural Mountains that run through Russia and sustain its economy.

In the case of the Balkan Mountains, the region is home of some of the largest deposits of silver. In Kosovo, on top of silver, from the mines in the Balkans other minerals are extracted such as lead, zinc, bismuth and cadmium. Extraction of metals and minerals is also one of the major activities of Bulgaria. The Western Balkans have the largest deposits of copper, chromite, lead and zinc of Europe, but their extraction has been constantly interrupted due to the conflicts in the region. Recently, there are efforts to boost the economy of the Balkan countries via extraction of the minerals in the mountain range.

Answer:

D. the Carpathian Mountains

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