Question

Where do convection currents form?

A. In areas where the land surface is mostly flat
B. Between areas with differing amounts of cloud cover
C. In areas where the temperature does not vary
D. Between areas with differing air densities

Answer 1

I think it's C

Convection currents are identified in Earth's mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth's crust.