Atmosphere and Clouds exam

The temperature at which water vapor condenses is the 

• relative humidity
• humidity
• freezing point
• dew point

True or False: Cirrus clouds often produce rain or drizzle.

• True
• False

What does "nimbus" mean in Latin?

• Rain
• Curl
• Heap
• Spread out

The only cloud that can produce thunder, lighting and hail

• nimbostratus
• cirrus
• cumulonimbus
• stratocumulus

True or False: Solid particles that water vapor condenses on to form a cloud is condensation nuclei

• false
• true

Clouds are made up of tiny drops of ______ or ice. The moisture in the cloud affects the weather.

• dust
• water
• cloud particles
• precipitation

This is sometimes called a thunderhead cloud. It looks very tall like mountains and heavy rain comes from it. 

• Cumulus
• Cirrus
• Stratus
• Cumulonimbus

They are low in the sky and look soft and fluffy. 

• Cirrus
• Cumulonimbus
• Cumulus 
• Stratus

During which part of the water cycle does a cloud form?

• Evaporation
• Precipitation
• condensation
• Run off

Clouds form when...

• liquid water is heated and evaporates to become water vapor in the atmosphere.
• water vapor in the atmosphere cools and condenses becoming water droplets in the atmosphere
• water droplets float upwards and gather together in the atmosphere to form a cloud.