Wear away or change the appearance or texture of (something) by long exposure to the air.
The gradual destruction or diminution of something.
What are the layers of earth
North America, South America, Africa, Antarctica, Australia (Oceania), Europe, and Asia.
Crust, mantle, core
Crust, mantle, outer core, inner core
What is an earthquake
A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
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