Answers

2014-11-13T22:24:04+05:30
An earth quake is a natural phenomenon (calamity) where there will be sudden energy discharge from within the earth crust.. The observable part is that all buildings, trees, monuments start collapsing..
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2014-11-13T22:46:02+05:30
the release of energy suddenly from the earth's crust that forms seismic waves is known as earthquake.
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