Atmosphere & Global Climate

The __________ is the where gases form a blanket around the Earth

• Atmosphere

• Biosphere

• Hydrosphere

• Lithosphere

_____ and _______ are the two major gases present in the air

• carbon dioxide; oxygen

• carbon monoxide; oxygen

• nitrogen; oxygen

• argon; oxygen

The air in the atmosphere is ____ percent oxygen

• 4%

• 21%

• 79%

• 99%

As the altitude increases, the density of the atmosphere _______.

• increases

• stays the same

• all are correct

• decreases

The atmosphere is divided into _____ layers

• 3

• 5

• 4

• 6

In what layer of the atmosphere does the aurora borealis occur

• Thermosphere

• Stratosphere

• Mesosphere

• Troposphere

What does the ozone layer do?

• It protects us from meteors

• It protects us from violent solar flares

• It protects us from ultraviolet radiation

• It helps us breathe

What layer protects us by burning up most meteors?

• Stratosphere

• Troposphere

• Thermosphere

• Mesosphere

What layer does most weather occur in?

• Troposphere

• Stratosphere

• Thermosphere

• Mesosphere

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

What is the coldest layer of the atmosphere?

• Troposphere

• Mesosphere

• Stratosphere

• Thermosphere