Answer:
c - convection currents within earths molten mantle.
Explanation:
The warm material rises since it is less dense and lighter whereas cool material sinks down as it is heavier and denser. This movement of warm and heavy material creates circulation patterns in the atmosphere, water and in the mantle of Earth which are known as convection currents.
Thus, the correct answer is option c.
convection currents within earths molten mantle.
Explanation: