Ch 15 The Atmosphere

Which gas in the Earth's atmosphere varies from time to time and place to place?

• water vapor
• nitrogen
• oxygen
• argon

What causes acid rain?

• High concentrations of sulfuric or nitric acid from pollution
• Fertilizer use
• Pesticide use
• CFCs

Which of these problems can be caused by air pollution?

• Respiratory problems
• Reduced food sources for humans
• Increased disease for humans
• Decrease in global temperatures

Acid rain can damage

• Drinking water sources
• Aquatic life
• Architecture/buildings
• All options are correct

The ozone layer protects us from

• UV rays
• CFCs
• Increased atmospheric heat
• Decreased atmospheric heat

This gas makes up 78% of the atmosphere

• oxygen
• nitrogen
• ozone
• carbon dioxide

This layer is where satellites are found

• thermosphere
• exosphere
• stratosphere
• mesosphere

This layer of the atmosphere contains most of the ozone

• troposphere
• thermosphere
• mesosphere
• stratosphere

This layer is where auroras are found

• exosphere
• thermosphere
• exosphere
• mesosphere

This layer is where weather occurs

• troposphere
• thermosphere
• exosphere
• stratosphere