Question

use the diagram to answer the question.
what happens at night?
cool air over the ocean moves onshore.
cool air over the land moves offshore.
warm air over the ocean moves onshore.
warm air over the land moves offshore.

Explanation:

At night, the land cools faster than the ocean. Cool air is denser and sinks. So, cool air over the ocean (which is relatively warmer compared to the land at night) moves onshore as part of the land - breeze circulation.

Answer:

Cool air over the ocean moves onshore.