Chapter 12

Which gas makes up MOST of Earth's atmosphere?

• oxygen

• nitrogen

• water vapor

• carbon dioxide

All weather takes place in which layer of Earth's atmosphere?

• mesosphere

• troposphere

• stratosphere

• thermosphere

Tags

NGSS.MS-ESS2-5

On the local news, the weatherperson says that the relative humidity is 20 percent. What does this mean?

• 20 percent of the water in the atmosphere is water vapor.

• The air contains 80 percent of the water vapor it can hold.

• The air contains 20 percent of the water vapor it can hold.

• 20 percent of the water in the atmosphere is in clouds, dew, or fog.

Rain falls through a layer of freezing air that is large enough to freeze the rain. What type of precipitation forms?

• hail

• sleet

• snow

• glaze

Tags

NGSS.MS-ESS2-5

Which of the following is true about the ozone layer?

• It stores excess oxygen.

• It is the source of our oxygen.

• It absorbs harmful ultraviolet rays from the Sun.

• It transmits healthy ultraviolet rays from the Sun.

Tags

NGSS.HS-PS4-3

What type of severe weather forms quickly from thunderstorms?

• cyclones

• tornadoes

• hurricanes

• dust storms

Tags

NGSS.MS-ESS2-5

What type of clouds appear to be stacked one on top of another?

• cirrus

• stratus

• nimbus

• cumulus

Which tool can meteorologists use to BEST predict local severe weather, such as tornadoes and thunderstorms?

• anemometers

• Doppler Radar

• GOES satellites

• NOAA satellites

Tags

NGSS.MS-ESS2-5

If the air mass forms over a desert in the southern United States, what will its temperature and moisture be like?

• The air mass will be hot and dry.

• The air mass will be cool and dry.

• The air mass with be hot and moist.

• The air mass will be cool and moist.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Why do meteorologists use satellites to help them predict the weather?

• The satellites can gather information about specific, local weather conditions.

• The satellites can use radio waves to measure wind speed and precipitation to map storm paths.

• The satellites can gather information about weather conditions all over the world at the same time.

• The satellites are the only weather instruments that can quickly gather information from the troposphere.