Earth Science Test

What is the outermost layer of Earth's atmosphere called?

• mesosphere

• exosphere

• thermosphere

• stratosphere

Which layer of the atmosphere contains the ozone layer?

• Mesosphere

• Stratosphere

• Troposphere

• Exosphere

Explain how the greenhouse effect works.

• The greenhouse effect works by trapping heat in the Earth's atmosphere through greenhouse gases like carbon dioxide and water vapor.

• The greenhouse effect is primarily due to volcanic activity

• The greenhouse effect is caused by the Earth's rotation

• The greenhouse effect is a result of deforestation

Which is not a greenhouse gas?

• Ozone (O3)

• Water vapor (H2O)

• carbon monoxide (CO)

• Carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O)

What are the primary sources of carbon monoxide in the atmosphere?

• burning of fossil fuels and natural sources like wildfires

• Deforestation

• Volcanic eruptions

• Excessive use of air fresheners

Identify the layer of the atmosphere where most weather phenomena occur.

• Exosphere

• Mesosphere

• Stratosphere

• Troposphere

How do chlorofluorocarbons (CFCs) impact the ozone layer?

• CFCs strengthen the ozone layer

• CFCs create a protective barrier around the ozone layer

• CFCs have no impact on the ozone layer

• CFCs impact the ozone layer by breaking down ozone molecules through chemical reactions in the stratosphere.

What are the main types of particulate matter found in the air?

• PM1.0 and PM3.0

• PM2.0 and PM4.5

• PM5.0 and PM7.5

• PM10 and PM2.5

Which layer of the atmosphere is closest to the Earth's surface?

• Troposphere

• Mesosphere

• Exosphere

• Stratosphere

List three major air pollutants released from vehicle emissions.

• Volatile organic compounds

• Sulfur dioxide

• Carbon monoxide, nitrogen oxides, particulate matter

• Lead