Geology describes the rocky parts of the Earth's

ارضیات زمین کے چٹانی حصوں کو بیان کرتی ہے۔

Core

mantle

Crust

Convection Currents

The lithosphere is the rocky outer part of the Earth.

It is made up of the brittle crust and the top part of the upper mantle.

The lithosphere is the coolest and most rigid part of the Earth.