Question

1. what could be added to figure 2 so that it better shows how the sun causes surface winds?

the sun heating up the air on the surface of the ocean, causing differences in air pressure.
energy from the sun pushing air to move towards land, resulting in surface winds.
the sun heating up the ocean, and the ocean heating up the air above it, causing differences in air pressure.
the sun heating up the ocean, and seawater evaporating to form clouds, which push air to new places.

Explanation:

Surface winds are mainly caused by differences in air - pressure. The sun heats up the ocean, and the ocean then heats up the air above it. This heating causes differences in air - pressure, which in turn leads to surface winds. Option 1 only mentions the sun heating air over the ocean without the key role of the ocean heating the air. Option 2's description of the sun "pushing air" is inaccurate. Option 4 focuses on cloud - formation rather than the main mechanism of air - pressure differences causing winds.

Answer:

The sun heating up the ocean, and the ocean heating up the air above it, causing differences in air pressure.