Which of the following statements is true?A.The average thickness of the crust is 20 miles.
B.The Earth's crust is made of different continental plates.
C.The crust below the continents is made of granite.
D.All of the above.

Answers

Answer 1
Answer:

Answer:

c

Explanation:

Answer 2
Answer:

Answer:

C. The crust below the continents is made of granite.

Explanation:


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Medicare, child care services, and retirement benefits are all examples of __________.

Answers

Medicare, child care services, and retirement benefits are all examples of social programs or social welfare benefits. Social programs, also called welfare programs, are subsidies or assistance given by the government to its citizens. From children to senior citizens, a social program must be available for everyone. Other programs include: food assistance, housing, and energy and utilities subsidies.

Government and public support for the labor movement increased dramatically during the __________.A.
Progressive Era
B.
Industrial Revolution
C.
Great Depression
D.
Second World War


(the answer is not A)

Answers

Answer: (C) Great depression

Explanation:

 The great depression is the type of economical depression that spread world wide in the year 1930s in the united states. The government and the public support increased dramatically due to the great depression for the movement of the labor.

 The timing varies across the nations in the great depression and in the 20th centenary it was the deepest and the longest depression. This mainly occur due to the weakness in the economy.

Therefore, Option (C) is correct.

Answer:

C

Explanation:

The first major military engagement down American Revolution took place near

Answers

The first major military engagement of the American Revolution took place near Boston. The military engagement was the battles of Lexington and Concord which began the American Revolution. 

Which country of Europe experiences the greatest seismic activity, including both earthquakes and volcanic eruptions?

Answers

Answer:

Italy

Explanation:

The European country that experiences the greatest seismic activity is Italy. The seismic activity is manifested through both volcanic eruptions and earthquakes. The reason for this is that Italy is located near the boundary between the Eurasian and African tectonic plates. This boundary is a very complex collision boundary, where there is lot of pressure between the two continental plates, causing constant adjustments in the crust, resulting in constant earthquakes. Also, there are volcanoes, which have emerged on the land. Vesuvius and Etna are actually one of the best known volcanoes in the world, with Etna being one of the most active volcanoes in the world.

What causes the most land erosion in the United States today?

Answers

Answer:

Explanation:

1. Agriculture: Extensive agricultural practices, such as improper land management, overgrazing, and the use of heavy machinery, can lead to soil erosion. When soil is exposed and not adequately protected by vegetation, it becomes vulnerable to wind and water erosion.

2. Construction and Urbanization: The construction of roads, buildings, and other infrastructure often involves the removal of vegetation and the disturbance of natural landscapes. This can increase the likelihood of erosion, especially during rainfall events, as the natural drainage patterns and soil stability are disrupted.

3. Deforestation: The removal of forests for timber, agriculture, or urban development exposes the soil to erosion. Forests play a crucial role in preventing erosion by holding the soil together with their roots and providing a protective layer of vegetation.

4. Mining Activities: Mining operations can result in significant land disturbance, leading to erosion. Excavation and removal of soil or rock can destabilize slopes and expose bare surfaces prone to erosion.

5. Improper Land Management Practices: Improper land management practices, such as improper irrigation, inadequate soil conservation techniques, and over-extraction of resources, can exacerbate erosion. These practices can deplete the soil's fertility and disrupt its natural balance, making it more susceptible to erosion.

Which plate boundary and movement commonly creates ridges, like the Mid-Atlantic oceanic ridge?

Answers

There are four types of plate boundaries:

Divergent boundaries, where new crust is generated as the plates pull away from each other. Convergent boundaries, where crust is destroyed as one plate dives under another. Finally, there's Transform boundaries, where crust is neither produced nor destroyed as the plates slide horizontally past each other.                                                                                                                     Divergent Boundaries create mountain ranges, as the plates pull apart and magma from Earth's core rises through the gap and flows out. It then cools, and over millions of years, this process builds until the magma has risen up so far it is a mountain