Diagrams showing the mechanisms of local land and sea breezes, including air movement and temperature differences between land and ocean surfaces.

1. In the diagrams, what are the circular motions of air called?
Answer: Convection currents

2. What causes these circular motions of air to occur?
Answer: Differences in air temperature and density between the land and ocean surfaces.

3. Why is the warmer air rising while the colder air is sinking?
Answer: Warmer air is less dense than cooler air, so it rises; cooler air is denser, so it sinks.

4. Why is the land significantly warmer in the daytime when compared to the ocean?
Answer: Land heats up faster than water during the day because it has a lower specific heat capacity.