Answer:
Convection currents
Explanation:
The tectonic plates on Earth have been formed, and have been moving ever since their formation because of the convection currents. These currents are present in the mantle layer, which is the second layer from top to bottom. The radioactive decay of elements that are found deep inside the interior of the Earth manage to melt the rocks and metals, thus creating the magma. With its slow and constant movement, the convection currents manage to bring the heat and magma to the surface. As they have already broken the Earth's surface into multiple pieces, the magma is pushed up through the cracks, or occasionally forms new ones. That causes the creation of new crust, a crust that pushes the old crust aside, resulting in plate collision and subduction in other part of the surface, so the old crust gets into the mantle gradually and gets molten. This process is responsible for all the geological activity on the planet.
Choose all the answers that apply.
The earth's crust:
is one solid land mass
is broken into pieces
has seven main plates
is mostly made of iron and nickel
is mostly made of silicon dioxide
The correct answers with brief explanation:
Is broken into pieces
- The crust is indeed broken into different pieces, also known as plates, which moves according to the movement of magma.
Has seven main plates
- There are seven main plates indeed, namely the Pacific Plate, Indo-australian Plate, Eurasian Plate, Antarctic Plate, Africa Plate, South America Plate and North America Plate.
Is mostly made of silicon dioxide
- This is correct as the crust is made up of 59% silicon dioxide also known as silica.
Hope it helps!
Final answer:
The Earth's crust is broken into pieces forming tectonic plates, including seven main plates, predominantly composed of silicon dioxide, oxygen, aluminum, iron, and magnesium.
Explanation:
Earth's crust:
The crust is not one solid land mass but is broken into pieces known as tectonic plates.
There are seven main plates that make up the Earth's crust and they interact at plate boundaries.
The crust is mostly made of silicon dioxide, oxygen, aluminum, iron, and magnesium, with basalt and granite as the main types of rocks.
The composition of the Earth's crust is mostly made of silicon dioxide, along with other elements such as oxygen, aluminum, iron, and magnesium. These substances form rocks like granite on the continental crust and basalt on the oceanic crust.
Brittany wants to use a model to study soil erosion on hills. She is told that farmers can prevent soil erosion by plowing so that their furrows run along hills instead of up or down hills. She fills a pan with dirt, packs the dirt firmly, then shapes it into parallel furrows. What should Brittany do with her pan of dirt next in order to study soil erosion? A. shake the pan rapidly back and forth B. prop up one end of it to make a slope and carefully pour water over it C. fill the pan with water, then tilt it until all the water runs out D. set it outside and check on it every day
Answer:
D. set it outside and check on it every day
Explanation:
In order for Brittany to be able to study the soil erosion by using a simplified method of what the farmers do on the slopes to minimize it, she will need to take the pan, leave it outside, and check on it every day. By having the required shape, the soil will give somewhat an example of the soil on the slopes that has been plowed so that the furrows run along the hills. Since the hills do not move or tilt, the pan with the soil should be stable, static. Being put outside, it will be exposed to the natural conditions that cause the erosion, such as the water and wind. Brittany will need to check upon the soil every day and make detailed notes and measurements to see what the erosive effects are on it.
Answer:
prop up one end of it to make a slope and carefully pour water over it
Explanation:
i had it on study island and this was the right answer
What sea sits just off the ross ice shelf
Answer: it is the Ross Sea
Does the earth have an unlimited supply of magma?
Answer:
No
Explanation:
The magma supply of the Earth is not unlimited, but instead it has a fairly constant volume. On the other hand, the magma is not spending itself even though it constantly comes out on the surface of the Earth. The reason for that is that the magma that comes out on the surface, is actually replaced by newly formed magma. The newly formed magma is actually from the crust of the tectonic plates that are subducting. As the plates are subducting, they reach the mantle layer where the temperature and pressure are very high, so they melt the crust. The molten crust is becoming the new magma that replaces the one that is pushed toward the surface. This is a cycle that constantly goes on, so even though the magma is not endless, it manages to circle through the top two layers and replenish itself.
What are the four countries with the largest land areas in the western hemisphere?
Answer:
Canada, United States, Brazil, Argentina
Explanation:
The four largest countries by area in the Western Hemisphere are Canada, United States, Brazil, and Argentina. These countries are located in North and South America, with Canada and the United States being in North America, while Brazil and Argentina being in South America. All of these countries are in the top 10 largest countries in the world by area, with Canada being on the second place, the United States on third, Brazil fifth, and Argentina eight. One of the main reasons why these countries are so large is because they are countries of the New World, all being former colonies, where the populations where relatively small, but the European settlers managed to occupy very large areas. Once they gained independence, the boundaries were set in accordance to the colonial boundaries, so instead of having numerous smaller countries divided because of ethnicity, race, or culture, large multiracial, multiethnic, multicultural countries were established.
The four countries with the largest land areas in the Western Hemisphere are Canada, the United States, Brazil, and Argentina. Additional information is required to determine which country has the largest percentage of its land protected.
Explanation:In the Western Hemisphere, the four countries with the largest land areas are:
Canada: Spanning much of the northern part of North America, Canada is the second-largest country in the world by total area.the United States: Including the contiguous states as well as Alaska and the island state of Hawaii, the U.S. ranks third in the world by total land area.Brazil: The largest country in South America, Brazil ranks fifth in the world by total area.Argentina: Ranking as the eighth-largest country in the world, Argentina is South America's second-largest country by physical area.When considering the question of which country has the largest percentage of its land protected, this information does not provide a direct answer. We would need additional data on the protection status of lands within each country to answer definitively.
Which process can affect the rate of carbon dioxide emissions or other greenhouse gas emissions by changing average temperatures?
A. Greenhouse gas feedback
B. Cloud cover feedback
C. Axial precession
D. Continental drift
Answer:
A. Greenhouse gas feedback
Explanation:
Greenhouse effect is a natural atmospheric phenomenon responsible for maintaining life on earth. Without the presence of this phenomenon, the temperature on Earth would be very low, around -18ºC, which would make the development of living beings impossible.
There are several greenhouse gases in the atmosphere capable of absorbing solar radiation radiated from the earth's surface, preventing all heat from returning to space. Part of the energy emitted by the sun to Earth is reflected into space, some is absorbed by the earth's surface and oceans. A portion of the heat radiated back into space is retained by the greenhouse gases present in the atmosphere. In this way, the energy balance is maintained, so that there are no large thermal amplitudes and temperatures are stable.
However, the high concentration of these gases in the atmosphere makes it even more difficult for heat to disperse into space, increasing the planet's temperatures. The greenhouse effect has been aggravated by the increasing emission of greenhouse gases into the atmosphere. This emission is caused by anthropogenic activities such as burning of fossil fuels, gases emitted by car exhausts, waste treatment, fertilizer use, agricultural activities and various other industrial processes.
The rate of carbon dioxide emissions or other greenhouse gas emissions by changing average temperatures affects the process of Greenhouse gas feedback. Thus, the correct option is (A).
The majority of animals that exhale carbon dioxide as a waste product are natural carbon dioxide sources.
The main source of carbon dioxide emissions from human activity is energy generation, which includes burning coal, oil, or natural gas.
Carbon dioxide is a chemical that humans frequently emit into the atmosphere when they burn fossil fuels like coal or gas.
Climate change is caused by the planet's atmosphere getting overheated as a result of carbon dioxide emissions. In fewer than 200 years, human activity has increased the atmosphere's carbon dioxide content by 50%.
Therefore, the correct option is "A".
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Planet that has an orbit that intersects the orbit of pluto is ___
Answer:
Neptune
Explanation:
Neptune is the only planet far enough out to intersect the orbit of pluto.
What is the capital of the united states largest state
Answer:
Juneau
Explanation:
The largest state in the United States is Alaska. The capital of this detached state is Juneau. Juneau has been the capital of Alaska since the beginning of the 20th century, more specifically from 1906. This city is actually not the biggest in Alaska, but instead it is the second largest, though it is a center of large portion of the things that happen in the state. The population of the city itself is little over 32,000 people, making it the least populous capital city of any state in the United States. As a metropolitan area though, the population is around 100,000 people. It can not really be expected for this city to be much larger as the climate and the geography simply don't provide the conditions for big growth.
Answer:
Juneau,alaska
Explanation:
What motivates many South Americans to move from rural to urban areas?
irrigation
the fact that mechanized agriculture has replaced manual labor
plantation farming
subsistence agriculture
Final answer:
The main motivation for South Americans moving from rural to urban areas is the search for better economic opportunities due to the replacement of manual farm labor by mechanized agriculture. Urban areas offer more jobs, education, and healthcare, while farming presents challenges like weather dependence and unstable markets.
Explanation:
Many South Americans are motivated to move from rural to urban areas primarily due to the promise of better economic opportunities. Mechanized agriculture has replaced much of the manual labor on farms, resulting in fewer job opportunities in rural areas. As a result, people often seek work in urban areas where industries and services provide more employment options. Furthermore, urban areas tend to offer better access to education, healthcare, and infrastructure. The challenges of farming, such as dependency on weather and volatile market prices, also make agricultural life less attractive, prompting a rural-to-urban migration. This historical trend of urbanization mirrors the global shift seen since the Industrial Revolution, where technological advancements and industrial growth have concentrated populations into growing cities.
Which of the following is most responsible for El Niño?
The El Nino (sorry for the lack of accents) is caused when a lack of winds allows for the development of an abnormally large body of warm water in the pacific region, causing many weather abnormalities in North and South America. Your answer is B!!!
B) The calming down of trade winds in the Pacific, which leads to the buildup of warm water.
What three processes happen in every geological period? A. Mass extinctions, Wegenerian cycles, and the emergence of new life forms B. Climate change, Wegenerian cycles, and mass extinctions C. Mass extinctions, the complexity of life, and oceanic movement D. Wegenerian cycles, massive storms, and continent formation
Answer:
A. Mass extinctions, Wegenerian cycles, and the emergence of new life forms
Explanation:
Every geological period is characterised by episodes of mass extinction, Wegenerian cycles and emergence of new life forms.
The boundaries of most geologic periods are usually mass extinction periods and these mass extinction activates new evolution of life forms. For example, the period between the Mesozoic era and Cenozoic is marked by the K-T extinction where dinosaurs and about 75% of all life became extinct. New advanced mammals sprang up shortly after the extinction in the Cenozoic era.
During the geologic period, series of tectonic activities are in play as a result of the internal workings of the earth. Continents splits apart and new landform arises at plate boundaries. This is the Wegenerian cycle. The external processes like weathering and erosion helps to recycle the landforms and keeps it in check.
which of the following is not a form of political participation
You have to show us the political participation
The correct answer is C) paying taxes.
The other options of the question were A) voting in elections. B) contacting public officials. D) protesting government decisions.
Paying taxes is not a form of political participation.
Political participation is when you actively participate and write to your representatives to ask or demand a solution to a problem. That is why you voted for them. And you follow up on your petition. If nothing happens, you organize demonstrations, go to TV stations, send comments to radio stations or took the streets to protest and make your voice heard.
Paying taxes is your obligation as a citizen. It is not considered to be political participation.
What country has the highest average elevation in the world
1. Bhutan
2. Nepal
3. Tajikistan
Each one exceeds 10,000 avg. feet, Bhutan being the tallest avg.
What are the 3 regions of north carolina?
Which two factors cause the perpendicular rays of the sun to move between 23.5o n and 23.5o s?
Answer:
It is the tilt of Earth's axis and Earth's rotation.
Explanation:
Both tilt and rotation are required for the perpendicular rays to move.
Final answer:
The movement of the sun's perpendicular rays between 23.5° N and S is caused by the Earth's axial tilt of 23.5 degrees and its elliptical orbit as per Kepler's Second Law, leading to the seasonal variations experienced on Earth.
Explanation:
The two factors that cause the perpendicular rays of the sun to move between 23.5° N and 23.5° S are the Earth's axial tilt and its elliptical orbit around the sun, which are also the basis of the seasonal changes we experience. The axial tilt of 23.5 degrees means that different parts of the Earth are closer or farther from the sun at different times of the year, leading to the Tropic of Cancer (23.5° N) and the Tropic of Capricorn (23.5° S) experiencing the sun's rays perpendicularly at the summer and winter solstices, respectively. Furthermore, the Second Law of Kepler, which states that a planet moves about the sun at such rates that the line connecting the centers sweeps over equal areas in equal times, contributes to the slight variations in the speed of Earth's orbit, affecting the exact positioning of the sun's perpendicular rays throughout the year.
When the north end of Earth's axis is tilted toward the sun, North America will experience ______.
Answer:Day time
Explanation: North America would be faced towards the sun meaning it would be day time
Two common activities that greatly affect the economies of South and Southeast Asia include terracing and __________.
A.
hunting
B.
gold mining
C.
outsourcing
D.
auto production
Answer:
c
Explanation:
Answer:on my quizlet page i made last year its c
Explanation:
According to this map, where in the country would you have been MOST likely to find iron mines?
A) northeast
B) northwest
C) southeast
D) southwest
I think it would be B) northwest
That shows the most iron ore deposits which would mean that is probably where the most iron mines would be.
According to the given map, the iron mines are most likely to find in the area of northwest.
What is the iron mines?The term “iron mine” is defined to mines that extract iron ore or ferriferous minerals. This is found out that most of the iron miles is comes from the northwest area. Magnetite, limonite, goethite and siderite are common iron minerals that are found in the northwest.
Therefore, option B is correct.
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Which material most likely has the highest level of permeability?
A. Sand
B. Clay
C. Gravel
D. Silt
Answer:
Silt
Explanation:
Permeability is what allows liquids or gasses to flow through or pas through a material.
Silk has the highest level of permeability, causing gasses and liquids to easily flow through it.
Sand, clay and gravel do not have high levels of permeability. That is why these substances are used to filter water. They do not allow liquids or gasses to easily flow through them, causing them to loose any dirt or physical sustenance.
Mordancy.
The material that most likely has the highest level of permeability is Gravel. Gravel and sand are both permeable and porous.
What do you mean by permeability?Permeability refers to the quality or state of being permeable that can penetrate especially liquid or gas.
The material that most likely has the highest level of permeability is Gravel.
Therefore, C is the correct option.
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Explain how convection currents are related to plate tectonics?
The convection currents are what causes the movement of the tectonic plates. These currents occur in the mantle layer. Basically, the convection currents are a circular movement of the magma in the mantle which is cause by the difference in temperature and density. The hotter magma moves up because it is less dense, while the cooler magma moves down because it is more dense. This movement continues all the time. The magma that moves up comes in touch with the crust above it. At certain places where the crust is thinner, or there are cracks, under the big pressure from the mantle, the magma manages to penetrate through it, filling up the gaps, and also pushing the plates away. As the plates are pushed more and more, their opposite ends collide with other plates, resulting in subduction, so the crust is getting into the mantle and melts, moving down in the mantle as it is becoming cooler and denser magma, and the process continues on and on.
Which question may be used to start your initial research about "Global Warming"? A. How do you spell "global warming"? C. When did global warming first become a concern? B. Who is Al Gore? D. None of these
Answer:
ccccccccccccc all the way
Explanation:
What country has the largest muslim population
Answer:
I think your answer to your question is Indonesla
What is the most common color used in national flags?
if you look at all of the flags together, you'll see that most of them have some shade of green on them.
How did this technology make the eqyptian revolution different from earlier revolutions elsewhere in the world?
Answer: The Egyptian revolution of 2011, also known as the January 25 Revolution, started on 25 January 2011 and spread across Egypt. The date was set by various youth groups to coincide with the annual Egyptian "Police holiday" as a statement against increasing police brutality during the last few years of Mubarak's presidency. Started on 25 January 2011 and spread across Egypt. The date was set by various youth groups to coincide with the annual Egyptian "Police holiday" as a statement against increasing police brutality during the last few years of Mubarak's presidency.
It consisted of demonstrations, marches, occupations of plazas, non-violent civil resistance, acts of civil disobedience and strikes. Millions of protesters from a range of socio-economic and religious backgrounds demanded the overthrow of Egyptian President Hosni Mubarak. Violent clashes between security forces and protesters resulted in at least 846 people killed and over 6,000 injured.[22][23] Protesters retaliated by burning over 90 police stations across the country.
Explanation: The Egyptian protesters' grievances focused on legal and political issues, including police brutality, state-of-emergency laws, lack of political freedom, civil liberty, freedom of speech, corruption,high unemployment, food-price inflation and low wages. The protesters' primary demands were the end of the Mubarak regime and emergency law. Strikes by labor unions added to the pressure on government officials.
During the uprising, the capital, Cairo, was described as "a war zone" and the port city of Suez saw frequent violent clashes. Protesters defied a government-imposed curfew, which was impossible to enforce by the police and military. Egypt's Central Security Forces, loyal to Mubarak, were gradually replaced by military troops. In the chaos, there was looting by rioters which was instigated (according to opposition sources) by plainclothes police officers. In response, watch groups were organized by civilian vigilantes to protect their neighborhoods.
On 11 February 2011, Vice President Omar Suleiman announced that Mubarak resigned as president, turning power over to the Supreme Council of the Armed Forces (SCAF). The military junta, headed by effective head of state Mohamed Hussein Tantawi, announced on 13 February that the constitution is suspended, both houses of parliament dissolved and the military would govern for six months (until elections could be held). The previous cabinet, including Prime Minister Ahmed Shafik, would serve as a caretaker government until a new one was formed.
-Hope this helped-
-The Girl who loves history-
Answer:
D. Use of social media
Explanation:
The social media is a powerful tool for the spread of the information and data to a different part of the world very easily and quickly. And this tool was responsible for the spread of the revolution in the technology in the worldwide areas.What is the circumference of the circle in terms of pi? 20 in the circle.
A. 20pi in.
B. 40pi in.
C. 60pi in.
D. 400pi in.
Answer:
Explanation:
I’m so confused the answer should be 126 but that’s not an answer choice
Are there more mountains east or west of the mississippi river
Answer:
yesExplanation:
There is only one major mountain range east of the Mississippi River (the Appalachians) but two major ranges west ( the Rockies and the Sierra Nevadas). The latter mountain ranges are relatively younger than the Appalachians and therefore have higher and sharper (and more) peaks.
The United States has more mountains to the west of the Mississippi River, including notable ranges like the Rocky Mountains and the Sierra Nevada. Comparatively, the East has fewer mountains, although it includes ranges like the Appalachian Mountains.
Explanation:The Mississippi River divides the United States into the East and West. Generally, there are more mountain ranges located to the West of the Mississippi River. Significant mountain ranges such as the Rocky Mountains and the Sierra Nevada contribute to this count. Although there are mountains to the east, such as the Appalachian Mountains, their count is not as abundant as the West.
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Planet with an atmosphere that rains sulfuric acid is ____
How much bigger is the diameter of the earth compared to pluto?
Answer:
Pluto is only 1,430 miles (2,302 kilometers) in diameter and is about 1/6th the size of Earth. Pluto is actually smaller than our own Moon
The pacific ocean touches all continents except which two?
Answer:
Africa and Europe
Explanation:
The Atlantic Ocean touches these continents.
The greatest total number of foreign-born residents can be found in
A, China
B, The United States)
The answer must be B, the United States.