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Question
How are earthquakes caused?
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Solution
The surface of the earth is made up of interlocking plates of rock that float on a semi-liquid layer called the mantle. When two floating plates collide, the vibrations pass through the , earth’s surface or the crust. This makes the crust and everything on it shake uncontrollably and causes earthquake.
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| 1 | Drought | a | Man-made disaster |
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| 3 | Underwater earthquakes that cause tsunamis | c | Largest oil spill disaster |
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