GEOLOGY

Detailed explanation-1: -The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma. At the center of the Earth is a hot, dense metal core.

Detailed explanation-2: -The solid crust or the hard top layer of the earth is called the lithosphere.

Detailed explanation-3: -The crust is the layer that makes up the Earth’s surface and it lies on top of a harder layer, called the mantle. Together, the crust and the upper mantle form the Earth’s outer shell. The crust is made up many types of rocks, which are lighter than the rocks that make up the mantle.

Detailed explanation-4: -The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the Lithosphere. The layer below the rigid lithosphere is a zone of asphalt-like consistancy called the Asthenosphere.

Detailed explanation-5: -Earth’s outermost, rigid, rocky layer is called the crust. It is composed of low-density, easily melted rocks; the continental crust is predominantly granitic rock (see granite), while composition of the oceanic crust corresponds mainly to that of basalt and gabbro.