Question

convection occurs in the earths ______.
a. atmosphere
b. mantle
c. oceans
d. all of these

Explanation:

Convection is the transfer of heat through fluid (liquid or gas) movement. In the Earth's atmosphere, warm air rises and cool air sinks (atmospheric convection). In the oceans, warm water rises and cold water sinks (oceanic convection). In the Earth's mantle, molten rock (magma) circulates due to heat from the core, causing convection currents that drive plate tectonics. So convection occurs in the atmosphere, mantle, and oceans.

Answer:

D. all of these