GEOLOGY

Detailed explanation-1: -The mantle is composed of very hot, dense rock. This layer of rock even flows like asphalt under a heavy weight. This flow is due to great temperature differences from the bottom to the top of the mantle. The movement of the mantle is the reason that the plates of the Earth move!

Detailed explanation-2: -Mantle convection is the very slow creeping motion of Earth’s solid silicate mantle as convection currents carry heat from the interior to the planet’s surface.

Detailed explanation-3: -Magma. Magma is the molten rock found beneath Earth’s mantle layer which when comes out of the crust is called lava.

Detailed explanation-4: -It is mostly solid rock, but less viscous at tectonic plate boundaries and mantle plumes. Mantle rocks there are soft and able to move plastically (over the course of millions of years) at great depth and pressure. The transfer of heat and material in the mantle helps determine the landscape of Earth.

Detailed explanation-5: -Heat from the core drives a slow churning motion of the mantle’s solid silicate rocks, like slow-boiling fudge on a stove burner. This conveyor-belt motion causes the crust’s tectonic plates at the surface to jostle against each other, a process that has continued for at least half of Earth’s 4.5 billion-year history.