Question

select the correct answer. 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

Explanation:

Convection currents involve the movement of fluid (like air or magma) where warmer, less dense material rises and cooler, denser material sinks. Option A describes hot air rising and cold air sinking, which matches the convection principle. Option B has cold water rising (incorrect as cold water is denser), C is about Earth's rotation (not convection), D is random temperature distribution (not convection), E has hot air sinking (incorrect as hot air is less dense and should rise). So A is correct.

Answer:

A. hot air rising and cold air sinking