SOLAR SYSTEM

Detailed explanation-1: -Magma in the Earth’s mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.

Detailed explanation-2: -In natural convection, an increase in temperature produces a reduction in density, which in turn causes fluid motion due to pressures and forces when fluids of different densities are affected by gravity (or any g-force).

Detailed explanation-3: -Mantle convection describes the movement of the mantle as it transfers heat from the white-hot core to the brittle lithosphere.