Question

Which description is most comparable to the convection currents that exist in Earth’s mantle?
A.
hot air rising and cold air sinking
B.
cold water rising and hot water sinking
C.
the Sun rising and then setting 14 hours later
D.
random distribution of temperatures
E.
hot air sinking and cold air rising

Answer 1

So lets say that the brown line is the crust, and the curve down is a tectonic plate

Hot magma goes up and comes out the crust as lava and once it cools, the Igneous rock goes back into the layers (which is cooler in temperature)