State how wind affects the rate of evaporation.

Wind affects the rate of evaporation in the following ways:

1. Increase in Wind Speed: When the wind speed increases, it sweeps away the moisture or water vapor present in the air above the water body. This makes room for more water molecules to leave the surface and become vapor. Thus, increasing the rate of evaporation.

2. Distribution of Heat: Wind also helps in the distribution of heat which aids in the process of evaporation. It carries the warm air (which aids in evaporation) from the surroundings to the water body, thereby increasing the temperature and consequently the rate of evaporation.

3. Removal of Humidity: Wind helps in the removal of humidity from the area of evaporation. High humidity slows down evaporation because the air is already saturated with water vapor. Wind reduces the humidity level, allowing more water to evaporate.

4. Increase in Surface Area: Wind can cause waves in bodies of water, increasing the surface area from which evaporation can occur. This can also increase the rate of evaporation.

In conclusion, wind plays a significant role in increasing the rate of evaporation by removing the evaporated water vapor from the area over the water, distributing heat, reducing humidity, and increasing the surface area for evaporation.