MCQOPTIONS
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| 1. |
An earthquake is caused due to the |
| A. | incredibly slow motion of the tectonic plates on the earth's crust. |
| B. | deep focus that originates hundreds of kilometers below the surface of the earth. |
| C. | sudden violent shifting of the crust along a weak zone when excessive stress builds up. |
| D. | shallow focus just a few dozen kilometers below the earth's surface. |
| Answer» D. shallow focus just a few dozen kilometers below the earth's surface. | |