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The surface of the Earth consists of several pieces,big or small,just like a jigsaw.Is the Earth under your feet sleeping all the time?No.Sometimes it moves.The continuous activities happening in the crust give rise to a series of quakes.
The surface of the Earth consists of several pieces, big or small, just like a jigsaw.Is the Earth under your feet sleeping all the time? No.Sometimes it moves.The continuous activities happen in the crust give rise to a series of quakes .