1. All of the following are examples of types of precipitation except:

A. rain.

B. snow.

C. hail.

D. dust.

2. For a raindrop to fall to the ground from a cloud, what must be true?

A. The force of gravity must be smaller than the updraft force.

B. The force of gravity must be greater than the updraft force.

C. The force of gravity must be equal to the updraft force.

3. How is the droplet mass size related to the likelihood the droplet will fall to the ground?

A. directly related

B. inversely related

C. not related at all

4. A fluid can be:

A. a liquid only.

B. a gas only.

C. a liquid or a gas.

D. neither a liquid nor a gas.

5. Which of the following provides the updraft force in the atmosphere?

A. gravity

B. conduction

C. radiation

D. convection

6. Which type of precipitation can only be formed if the updraft force is greater than gravity?

A. rain

B. sleet

C. hail

D. snow

7. How is the updraft force size related to the likelihood the droplet will fall to the ground?

A. directly related

B. inversely related

C. not related at all

8. For snow to form in a cloud, the cloud must be at a temperature higher than the freezing point of water.

A. true

B. false