Plz answer asap
20 points
what causes convention currents?

a. density differences

b. fossils

c. earth's gravity

d. they don't exist

The Don't Exist

Explanation:

There is a such thing as Convection Currents but NOT Convention Currents.

A. Density differences

Explanation:

Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.