Question

1. what causes convection currents in the earths mantle? why are they important for plate tectonics?

Explanation:

Convection currents in Earth's mantle are caused by heat from the core. Hot material rises, cools, and sinks back down. They are important for plate tectonics as they drive the movement of the Earth's lithospheric plates, causing phenomena like earthquakes, volcanic activity, and the formation of mountain - ranges.

Answer:

Heat from the Earth's core causes convection currents in the mantle. They are important for plate tectonics as they drive the movement of lithospheric plates.