Plate tectonics is the correct explanation for why earthquakes occur. Thus, Option (A) is correct.
Plate tectonics is a scientific theory that describes the movement and interaction of large sections of Earth's lithosphere, known as tectonic plates. The Earth's crust is divided into several of these plates, and their boundaries are not static, but constantly shifting.
At the plate boundaries, there are three main types of interactions: divergent boundaries (plates moving apart), convergent boundaries (plates colliding), and transform boundaries (plates sliding past each other).
These interactions create immense forces and stress within the Earth's crust. When the accumulated stress exceeds the strength of the rocks along the plate boundary, it leads to the sudden release of energy in the form of seismic waves, resulting in an earthquake.
The movement and collision of tectonic plates can cause faults, fractures, and displacement in the Earth's crust, which is the primary source of earthquakes. As the plates continue to move, stress builds up along the faults until it is eventually released in the form of seismic activity.
Thus, Option (A) is the reason why earthquakes occur on Earth, as plate tectonics governs the movement and interactions of tectonic plates, leading to seismic activity.
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Earthquakes occur because of _____.
A)plate tectonics B)cracks in the crust C)landslides D)volcanoes
Earthquakes occur because of plate tectonics .
Stars appear to rise and set due to Earth's rotation, which happens from west to east. This makes all observable stars seem to rise in the east and set in the west, making it unlikely to find a star that behaves otherwise. Therefore, the correct option is option c.
The best explanation for the scenario where a star rises in the west and sets in the east is option c) This statement does not make sense. The stars appear to rise and set because of Earth's rotation. This perceived motion of the stars is due to our planet's daily rotation on its axis, not the stars themselves moving.
This rotation happens from the west towards the east, which causes stars to appear to rise from the east and set in the west. This pattern remains consistent for all observable stars from Earth. Therefore, it's not feasible to find a star that behaves contrary to this mechanism under general conditions.
Note: The question is incomplete. The complete question probably is: "Although all the known stars rise in the east and set in the west, we might someday discover a star that will rise in the west and set in the east." Choose the correct explanation why does the statement above make sense (or is clearly true) or does not make sense (or is clearly false).
a) This statement does not make sense. The stars moves because of the Galaxy's rotation around it center. So, during the day, al the stars must move in the same direction.
b) This statement makes sense. The North Star itself does not appear to move usually, but sometimes the precession occurs. Precession changes the tilt of Earth's axis and could make the North star set in east or rise in west.
c) This statement does not make sense. The stars appear to rise and set because of Earth's rotation. So, during the day, all the stars must move in the same direction.
d) This statement makes sense. The star appear to rise and set because of the sum of Earth's rotation and changing the seasons. So, in the night of solstice, the North Star could move in the opposite direction to other stars.
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The top country of nationality for refugees seeking entrance to the United States from 2004 to 2006 was Somalia.
Therefore, the top country of nationality for refugees seeking entrance to the United States from 2004 to 2006 was Somalia.
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Molten rock underground is commonly known as magma. Magma is a hot, semi-fluid or fluid rock material that exists beneath the Earth's surface.
It is formed through the partial melting of rocks in the Earth's mantle due to high temperature and pressure. Magma can vary in composition, depending on the type of rocks that melt and the degree of melting.
When magma reaches the Earth's surface through volcanic eruptions, it is then referred to as lava. Lava can flow out of volcanoes, and as it cools and solidifies, it forms various volcanic landforms such as lava flows, volcanic domes, and volcanic islands.
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Complete question
Molten rock under ground is called _____
Answer:
antidiuretic hormone
Explanation:
(1) amphibole and potassium feldspar (3) quartz and biotite
(2) potassium feldspar and quartz (4) biotite and amphibole