Earthquakes and Tsunamis Quick Check
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Question
What do earthquakes and tsunamis have in common?(1 point)
Responses
They originate on Earth’s surface.
They originate on Earth’s surface.
They only occur in the ocean.
They only occur in the ocean.
They only occur on landmasses.
They only occur on landmasses.
They modify Earth’s surface.
They modify Earth’s surface.
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Both earthquakes and tsunamis originate on Earth's surface and modify Earth's surface. However, earthquakes can occur both on land and in the ocean, while tsunamis primarily occur in the ocean.
Which describes the waves formed by tsunamis?(1 point)
Responses
They cause small waves both in the open ocean and near the shore.
They cause small waves both in the open ocean and near the shore.
They cause small waves in the open ocean, but large ones near the shore.
They cause small waves in the open ocean, but large ones near the shore.
They cause large waves both in the open ocean and near the shore.
They cause large waves both in the open ocean and near the shore.
They cause large waves in the open ocean, but small ones near the shore.
They cause small waves in the open ocean, but large ones near the shore.
hich correctly identifies ways that earthquakes and tsunamis can cause destruction?(1 point)
Responses
earthquakes: landslides
tsunamis: move blocks of land up or down
earthquakes: landslides tsunamis: move blocks of land up or down
earthquakes: open up large cracks in Earth’s crust
tsunamis: erosion of beaches
earthquakes: open up large cracks in Earth’s crust tsunamis: erosion of beaches
earthquakes: erosion of beaches
tsunamis: move blocks of land up or down
earthquakes: erosion of beaches tsunamis: move blocks of land up or down
earthquakes: landslides
tsunamis: open up large cracks in Earth’s crust
earthquakes: landslides tsunamis: open up large cracks in Earth’s crust
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earthquakes: landslides tsunamis: move blocks of land up or down
The correct answer is: They modify Earth’s surface.
To answer this question, we need to understand what earthquakes and tsunamis are.
An earthquake is a sudden and violent shaking of the ground, usually caused by the movement of tectonic plates beneath the Earth's surface. This movement generates seismic waves, which can cause the ground to shake.
A tsunami, on the other hand, is a series of ocean waves that are usually generated by an underwater earthquake, volcanic eruption, or landslide. Tsunamis can travel across entire ocean basins and can cause significant damage and loss of life when they reach coastal areas.
Now, let's analyze the statements given as options:
- They originate on Earth's surface: This is incorrect because earthquakes and tsunamis both originate beneath the Earth's surface, although tsunamis become evident on the ocean's surface.
- They only occur in the ocean: This is incorrect because earthquakes can occur both on land and in the ocean. Tsunamis may be more commonly associated with oceanic events, but they can also affect coastal areas.
- They only occur on landmasses: This is incorrect because earthquakes can occur on land and in the ocean. Tsunamis, as mentioned earlier, are primarily associated with coastal areas but can also affect oceanic regions.
- They modify Earth's surface: This is correct. Both earthquakes and tsunamis can cause significant modifications to the Earth's surface. Earthquakes can result in the formation of new landforms, such as mountains or rift valleys, while tsunamis can reshape coastlines and deposit sediments in new areas.
Based on this analysis, the correct answer is: They modify Earth's surface.