Clouds and Precipitation

This type of cloud is thin, wispy, and made of ice crystals

• cumulus cloud
• stratus cloud
• cirrus cloud
• cumulonimbus cloud

The temperature at which water vapor condenses is the 

• relative humidity
• humidity
• freezing point
• dew point

What are the four classes of clouds based on altitude?

• cirrus, nimbus, stratus, cumulus
• low, middle, high, vertically developed
•  troposphere, stratosphere, mesosphere , thermosphere
• classes of clouds are not based on altitude

Which of these is NOT a way in which clouds affect climate?

• clouds cool Earth's surface
• clouds warm Earth's surface
• clouds deliver precipitation
• clouds block all harmful radiation

Which type of cloud often indicates that a storm is on the way?

• cirrus

• cumulonimbus

• cumulus

• stratus

Clouds that form very near the ground are called _______________.

• smog

• haze

• fog

• dust

Clouds are formed by the process of ______________________.

• precipitation

• evaporation

• condensation

• collection

How is sleet formed?

• Snowflakes fall, go through an area of cold air and turns into sleet before hitting the ground
• Rain falls, freezes in an area of cold air above the ground to make sleet
• Snowflakes fall and are melted a bit by warm air near the ground
• Sleet is not real

True or False: Hail is formed by water falling from a cloud and freezing on the way to the ground.

• True
• False

True or False: Hail is formed in the cloud and then falls to the ground.

• True
• False