US Climate

2. A long period of dry weather with little or no rain.
5. The amount of moisture present in the air.
6. Any form of water particles that fall from the atmosphere and reach the ground.
9. A violent, rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud.
11. A prolonged period of excessively hot weather, often accompanied by high humidity.
12. The gradual wearing away of land and soil due to natural processes or human activities.
13. The expansion of desert areas due to human activities, climate change, or natural processes.

1. A large, rotating storm system characterized by a low-pressure center, strong winds, and heavy rainfall.
3. The process by which a liquid, such as water, changes into a gas or vapor due to heat or increased temperature.
4. A measurement of temperature on a standard in which 32° is the temperature at which water freezes and 212° that at which it boils
7. The act of supplying dry land with water by artificial means.
8. A measurement of temperature on a standard in which 0° is the temperature at which water freezes, and 100° the temperature at which it boils
10. Bowl Time of severe dust storms in the 1930s that severely harmed the ecology and agriculture of the American and Canadian prairies.