GEOLOGY

Detailed explanation-1: -The Earth’s mantle is a mixture of solid and liquid. The upper mantle is solid and the lower mantle is liquid. Since there is more heat and pressure deeper in the mantle, the rock in the lower mantle is liquefied.

Detailed explanation-2: -The mantle is mainly composed of aluminum and silicates. The innermost layers of the Earth. The Earth has an outer core (liquid) and an inner core (solid). They are not chemically distinct from each other, but they are chemically distinct from the mantle.

Detailed explanation-3: -The mantle is the mostly-solid bulk of Earth’s interior. The mantle lies between Earth’s dense, super-heated core and its thin outer layer, the crust.

Detailed explanation-4: -Earth’s mantle is divided into two major rheological layers: the rigid lithosphere comprising the uppermost mantle, and the more ductile asthenosphere, separated by the lithosphere-asthenosphere boundary.

Detailed explanation-5: -Initially, it was made up of molten metals, rock and minerals, but over time, the process of “outgassing” occurred. In this process, the water that is contained within minerals erupted through cracks in the crust along with lava, causing the mantle to solidify.