Underwater mountain ranges where pieces of the earth's crust are moving away from each other.

The study of the earth and its structures

Correct order of the earth's layers from outside to inside

Huge pieces of the earth's crust that float like rafts on the upper mantle.

Process that causes rocks to gradually crumble or break into smaller pieces.

Boundary between the earth's crust and mantle.

Boundary between the earth's crust and mantle.

Process that causes rocks to gradually crumble or break into smaller pieces.

Huge pieces of the earth's crust that float like rafts on the upper mantle.

The study of the earth and its structures

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