Which statement best describes the theory of plate tectonics?

Plates sometimes move closer to one another.
Sections of Earth that shift are part of Earth’s asthenosphere.
Sections of Earth’s continents are in slow, constant movement.
Parts of the ocean floor move as they are carried by rift valleys.

Answers

Answer 1

Answer:

C Sections of Earth’s continents are in slow, constant movement.

Explanation:

Answer 2

Parts of the ocean floor move as they are carried by rift valleys is the statement best describes the theory of plate tectonics. Hence, option D is correct.

How rift valleys are formed?

A rift valley is a lowland area created by the separation of Earth's tectonic plates. Both on land and at the bottom of the ocean, rift valleys are produced as a result of the spreading of the seabed.

The four largest active continental rift valleys on Earth are the East African Rift, the Baikal Rift Valley, the West Antarctic Rift, and the Rio Grande Rift.

Rift valleys are typically long and narrow, some of them stretching hundreds of kilometers. Due in great part to volcanic deposition and marine or lacustrine sedimentation, their floors are comparatively level. Rift valleys have sharply sloping slopes that resemble terraces and stairs.

Thus, option D is correct.

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Related Questions

The permanent body and facial tattoos that are a rite of passage for Maori people are called
Au haka
В. mana motuhake
ta moko
pakéha​

Answers

Answer:

Tā moko

Explanation:

Tā moko is the permanent marking or "tattoo" as traditionally practised by Māori, the indigenous people of New Zealand

What kind of landform, surrounded by water on all sides but one, is shown in the picture below?

Answers

Answer:

I'll guess and say a pinnensula.

Explanation:

Hope you like :)

Answer:

a peninsula

Explanation:

what are some of the practical applications of geology

Answers

Answer:

Geologists and geophysicists have led the exploration for fossil fuels (coal, oil, natural gas, etc.) and concentrations of geothermal energy, for which applications have grown in recent years. They also have played a major role in locating deposits of commercially valuable minerals.

Explanation:

Given equation 8x - 10=6x

Answers

Answer:

if you are solving for x, x=5

Explanation:

Fill in the blanks to complete each statement about continental drift. Continental drift was first proposed by a scientist named Alfred______ . He theorized that the_____ were once one large landmass that drifted apart very slowly over a long time.

Answers

Answer:

Continental drift was first proposed by a scientist named Alfred Wegener. He theorized that the continents were once one large landmass that drifted apart very slowly over a long time.

Explanation:

Alfred Wegener was the scientist that came up with the idea that Earth's continents are not static but that they move slowly. While he came up to a lot of resistance and ridicule when he first proposed this, he did not give up, instead, he continued in his mission to prove his theory and managed to find numerous pieces of evidence to support it.

Some of the evidence that Wegener found were the mathcing continental margins, matching mountain chains in different continents, fossils, mid-ocean ridges, etc. When he managed to come out with all of the evidence the scientists that previously thought that he is crazy were shocked and saw that they were the ones that were wrong all the time. Quickly, this theory was accepted, and more and more evidence was obtained to support it, so the world finally knew that the continents are moving slowly, and that they were one big landmass in the distant past and that there are high chances that something like that will happen in the future as well.

Answer: Wegener and continents

Explanation:

The Alaskan coastline adjacent to the Gulf of Alaska is experiencing similar sea-level changes to Norway, Sweden, and Finland. However, the magnitude of the sea level changes along the Alaskan coastline is much more pronounced. The changes in sea level not only reflect what is happening in Norway, Sweden, and Finland but also which other contributing factor?

a. seawater is displaced from this region because it is flowing toward other regions like water sloshing in a bathtub).
b. uplift of the land due to a convergent plate boundary.
c. nearby rifting causing a deep trench/rift valley into which seawater is flowing.
d. pumping of hydrocarbons from beneath Prudhoe Bay.

Answers

Answer:

b. uplift of the land due to a convergent plate boundary.

Explanation:

We are informed about The Alaskan coastline adjacent to the Gulf of Alaska is experiencing similar sea-level changes to Norway, Sweden, and Finland. However, the magnitude of the sea level changes along the Alaskan coastline is much more pronounced. The changes in sea level not only reflect what is happening in Norway, Sweden, and Finland but

uplift of the land due to a convergent plate boundary. According bto the scientist, Global mean sea level has risen with about 8–9 inches arround 1880 till now. The cause of Sea level rise can be attributed to two factors which is related to global warming, these two factors are

✓ factors as a result of the water that is added as a result of melting ice sheets as well as glaciers.

,✓ expansion of seawater as it becomes warms.

uplift of the land could be regarded as the vertical elevation of the surface of Earth as a result of natural occurrence, which could be as a result of global glaciation and is possible with convergent plate boundary which is as a result of the destruction of the crust which leads to one plates diving under another. Whenever continent converges on an ocean ridge, an increasingly thin as well as hot subducting plate is over-ride, as a result of this, there will be upliftment of leading edge of the continent as well as inland during convergence. Subduction zones is formed when plate that has thinner oceanic crust goes beneath that thicker continental crust.

In general, what can you conclude about the lengths AC of BD and if the lengths of AB and CD are equal?

Answers

Answer:

When the lengths of AC and BD are equal, the lengths of AB and CD are also equal.

Explanation:

Got this wrong for yall but its the exact right answer.

Answer:

When the lengths of  AB and CD are equal, the lengths of AC and  BD are also equal.

Explanation:

Iceland is sitting on top of two plates: the continental portion of the North American plate and the continental portion of the Eurasian plate. These plates are diverging. Which landform would you expect to form?

a rift valley
a non-volcanic mountain chain
a volcanic island arc
a mid-ocean ridge
a volcanic mountain arc

Answers

Answer:

a mid-ocean ridge

Explanation:

The landform expected to be formed along this margin is a typical mid-ocean ridge.

A mid - oceanic ridge forms along the margins of a divergent zone. In this place, mafic and ultramafic magma are brought to the surfaceThey cool and solidify in such environment. Iceland harnesses the geothermal energy from this diverging boundary to meet some of her energy needs.

Find the coordinates of the missing endpoint if W is the MIDPOINT of XY.

W(4,-2) X(7,-4)

Answers

Answer:

The coordinates of the missing point if W is the midpoint of XY is [tex]Y(x,y) =(1,0)[/tex].

Explanation:

From Linear Algebra we define the location of midpoint by the following expression:

[tex]W(x,y) = \frac{1}{2}\cdot X(x,y)+\frac{1}{2}\cdot Y(x,y)[/tex] (1)

Where:

[tex]X(x,y)[/tex], [tex]Y(x,y)[/tex] - Endpoints of the line segment, dimensionless.

[tex]W(x,y)[/tex] - Midpoint, dimensionless.

If we know that [tex]W(x,y) =(4,-2)[/tex] and [tex]X(x,y) = (7,-4)[/tex], then the location of the point Y is:

[tex]Y(x,y) = 2\cdot W(x,y) -X(x,y)[/tex]

[tex]Y(x,y) = 2\cdot (4,-2)-(7,-4)[/tex]

[tex]Y(x,y) = (8,-4)-(7,-4)[/tex]

[tex]Y(x,y) =(8-7,-4+4)[/tex]

[tex]Y(x,y) =(1,0)[/tex]

The coordinates of the missing point if W is the midpoint of XY is [tex]Y(x,y) =(1,0)[/tex].

Before becoming queen, who was the archduchess of Austria?
A. Queen Elizabeth
C. Maria Theresa
B. Catherine the Great
D. none of the above

Answers

I think It’s C Maria Theresa
C is the correct answer .. hopes this helps a lot :)

Which of the following climate zones does giant pandas live
A. the tundra
B. the highlands
C. the coniferous forest
D. the deciduous forest


PLEASE HELP ME

Answers

Answer:

Try C) Coniferous forest

Explanation:

Hope this helps!c (^-^)

Find the distance between the pairs of points E(5,-1), F(-4,11)

Answers

Answer:

15

Explanation:

Step one

Given data

The point coordinate is E(5,-1), F(-4,11)

Hence

x1=5

y1=-1

x2=-4

y2= 11

Step two

Required

Distance between the two coordinate point

Applying the Pythagoras theorem for the distance between two points

d=√((x2-x1)²+(y2-y1)²)

d=√((-4-5)²+(11-(-1))²)

d=√-9²+12²

d=√81+144

d=√225

d=15

Hence the Distance the points is 15

what change would likely occur if the rate of earths rotation on its axis increases

Answers

Answer:

The length of the day would be shorter. the tilt of the Earth and its orbit around the Sun.

Explanation:

In rhombus ABCD, the diagonals AC and BD intersect at E. If AE = 5 and BE = 12, what is the length of AB?

Answers

Answer:

The length of AB is 13 units

Explanation:

consider the sketch of the rhombus below. A rhombus is a plane shape that has all its sides equal, but unlike a square, it is skewed at an angle.

We can notice that the right angle triangle is formed between points AEB. This is a very good indicator showing that we can apply Pythagora's theorem to solve our geometry problem here.

We are looking for the length of AB. This is the hypotenuse side of the triangle. From Pythagoras' theorem,

[tex]AB=\sqrt{(AE)^2 +(BE)^2}[/tex]

[tex]AB=\sqrt{5^2 +12^2} =13 units[/tex]

The length of AB in rhombus ABCD is 13 units.

Pythagoras theorem is used to show the relationship between the sides of a right angled triangle.

Applying Pythagoras theorem in triangle ABE:

AB² = AE² + BE²

AB² = 5² + 12²

AB² = 169

AB = 13 units

The length of AB in rhombus ABCD is 13 units.

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Is the desert sand closer in composition and in the degree of rounding and sorting as the river sand or the beach sand and why

Answers

Answer:

The three sand are similar in composition, since all are formed 90% by quartz. They are also similar in roundness, as they all have large particles that allow a very sandy soil with low water retention.

Explanation:

The desert area of the river and the beach have a very similar composition, since 90% of these sands are composed of quartz. however, the similarity does not mean that these sands are the same, as they are not, since the sands of the beach and the river may have a little more material, such as animal remains, making these sands also have carbon in composition, something that desert sand has in less quantity.

In addition, both sands have large particles that promote strong aeration in the soil, but a very rapid loss of organic matter.

compare these to population pyramids of Costa Rica Write a brief paragraph explaining the two pyramids. ​

Answers

Answer:

In the Case that these graphs are showing the number of people who are alive: Basically, the death rate in Costa Rica has lowered between 1990 and 2015. This is a good thing, because of how large the 2015 graph is compared to 1990.

Explanation:

You would write about how things in costa rica must have improved because the graphs show that more people in their later years are alive. Maybe the medical technology improved? Maybe there is less poverty? A lot of different factors like those could cause this change to occur. Good Luck!

What makes a disaster management system more or less effective?

Answers

Answer:

If there is a disaster a disaster system management system would be effective in organizing groups to help clean up, seek help, and look for survivors.

which country most likely relies on primary economic activities
A: Iraq
B: Israel
C: Syria
D: Yemen

Answers

FARMING, FISHING,FORESTRY and mining are all examples of primary activities.
IT MIGHT BE B

Israel relies on primary economic activities.

What does primary economic activities mean?

The primary sector of economy that is related to extraction/harvesting produce from the earth such as raw material or basic foods which are used for making finished goods. This includes : agricultural, mining, forestry, hunting, fishing etc

The country which is most likely to be relied on primary economic activities is Israel.

Therefore, option B aptly describes the above statement.

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Rock layers that make up the surface of the earth do not have a limit on their ability to
bend.
t/f

Answers

False. they do not have a limit
The answer is false! Hope this helps

In many tropical rainforests, people clear land by cutting down trees and burning them. After a few years, the soil runs out of nutrients and cannot be farmed any longer. How does this practice of “slash and burn agriculture” affect Earth’s atmosphere?

Answers

Answer:

It can cause desertification and releases greenhouse gases.

Explanation:

It releases greenhouse gases into the atmosphere, which causes warming. The process of greenhouse gases warming our atmosphere is called global warming.

Hope that helped!

What are some facts about hurricanes in the Caribbean

Answers

Answer:

Hurricanes are common as the hurricane belt is right there.

They are deadly.

They suck.

Many people pass from them, because they have very powerful ones sometimes which causes big disturbances in the nature and the community.

Explanation:

What's the price at which the quantity of demand for a product equals the quantity of supply?

Answers

Answer: market price

Which of the following defines the wavelength of a wave?
a. the height of a wave between peak and trough
b. the loudness of waves that travel through the air
c. the speed that a wave is passed from particle to particle
d. the distance between two identical points of a wave

Answers

Answer:

D. The distance between two identical points of a wave

Explanation:

Wavelength is the the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.

You can look at the picture to show wavelength.

Hope this helps!!

- Kay

it is D, wavelength is from trough to trough or peak to peak, since D means identical points of a wave, this means it will definitely match the points on the peak of the first wave and the second wave, which is defined as wavelength

How do animals help humans

Answers

Answer: In what way are you asking? Some animals provide us with food like cows and pigs but, some animals help us by eating flies like spiders

Explanation:

11) Which of the following is the correct characterization of population density?
A) Arithmetic density is the best ratio to use when describing the "why" of population density.
B) Physiologic density is the best ratio to use to describe human health.
) Agricultural density ratios are the best representation of productive agriculture yields.
D) A comparison of physiologic densities and arithmetic densities helps geographers understand
the capacity of land to yield food for the total population.
E) Arithmetic densities provide insight into relationships between resources and population
centers in a particular region.

Answers

Answer: The answer is D) A comparison of physiologic densities and arithmetic densities helps geographers understand

the capacity of land to yield food for the total population

Explanation:

Which country colonized the region that is highlighted and circled on the map above?
A. Spain
B. England
C. France
D. Portugal

Answers

the map is not there

Answer:

I know there is no map but I did a similar question and the correct answer I got was.  

D.  Portugal.

Explanation:

Portuguese Empire

Capital :                             Lisbon

Common languages :      Portuguese

Religion:                                 Catholicism

Government:                          Colonial empire

Which statements accurately describe the period immediately following World War II? Check all that apply.

After the Chinese War, China joined the United States in the fight against communism.
Tensions between the United States and the Soviet Union grew.
The United States and the Soviet Union emerged as superpowers.
Relations improved between Eastern and Western Europe.
The Iron Curtain separated Eastern and Western Europe.

Answers

Answer:

Correct answers are:

Tensions between the United States and the Soviet Union grew.

The United States and the Soviet Union emerged as superpowers.

The Iron Curtain separated Eastern and Western Europe.

Explanation:

First option is not correct as China emerged as a communist country, whose ideals were totally opposite to the ideals of United States.

Second option is correct as this tension led to their conflict, which is known in history as Cold war.

Third option is also correct as United States were economically, military and technologically the most developed countries in the world.

Fourth option is not correct as Eastern countries were communist, and had totally different governments than those in Europe.

That is best explained by the term Iron Curtain, used by Winston Churchill, which is used to describe the division that existed in Europe. That is why statement five is correct.

Answer: I agree with the person above

Explanation: My answers are below

Which of the following is true about lakes?
A)
Most lakes are very old.
B)
Most lakes are getting larger.
C)
Lakes are filled by erosion.
D)
Lakes contain little sediment.
E)
none of the above

Answers

I believe it is C: Lakes are filled by erosion

A lake is a body of water bordered on all sides by land. In the world, there are millions of lakes, as explained here.

What exactly is a lake?

A lake is a body of water bordered on all sides by land. In the world, there are millions of lakes. They can be found on every continent and in a variety of habitats, including mountains, deserts, plains, and near seashores.

The size of lakes varies. Option C: Erosion causes lakes to fill up, which is true about lakes.

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What was the first limitation that Los Angeles ran up against during its growth?​

Answers

Answer:

I believe it was droughts or not enough drinking water  

Explanation:

Select 5 countries where people aged between 24- 40 mostly want to migrate.

Answers

Answer:

North Macedonia, Albania, Serbia, Romania, and Bulgaria.

Explanation:

There are a lot of countries in the world where people in the age group of 24 to 40 would mostly want to migrate to other countries. A region that is in this kind of situation is the Balkan, and while in most of the countries this is the case, the situation is most dramatic in North Macedonia, Albania, Serbia, Romania, and especially Bulgaria.

It is not a small difference when it comes to people wanting to remain and people wanting to move, but it is in the range of 70,80, and even 90% of the people of this age group that say that they would prefer to migrate in another country. There are a lot of reasons for this, and some of them are politics, corruption on every level of the society, in order to get a job you usually need to be a member of the leading political party or to have a very good connection while your skills and qualities are often not taken in consideration, the economies are not at a good level, the living standard is low for European standards, and the pollution is among the highest int he world. All of this has led to the rapid loss of population of this age group in these countries, which in turn has led to a rapidly aging population and much lower birthrates. Bulgaria has it the worst and it is the country that has lost the biggest percentage of the population through migration in the last few decades.

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