APES 9.1 and 9.2

Where is the ozone layer primarily located?

• The stratosphere

• The thermosphere

• The mesosphere

• The troposphere

What is the primary function of the ozone layer?

• To provide oxygen to humans

• To regulate global temperatures

• To protect life on Earth from harmful ultraviolet radiation

• To create greenhouse gases

The natural formation of ozone in the atmosphere is a result of:

• Photosynthesis by plants

• A reaction between oxygen molecules and ultraviolet light

• Volcanic eruptions

• Lightning strikes

Tags

NGSS.HS-PS1-5

NGSS.HS-PS4-3

What is a major contributor to the natural depletion of ozone?

• Solar wind

• Forest fires

• Volcanic eruptions

• Industrial pollution

Tags

NGSS.MS-ESS3-4

Which of the following chemicals are primarily responsible for anthropogenic ozone depletion?

• Nitrogen oxides

• Carbon dioxide

• Chlorofluorocarbons (CFCs)

• Sulfur dioxide

What is the primary mechanism by which CFCs deplete the ozone layer?

• They absorb UV light

• They break down into chlorine atoms which then destroy ozone molecules

• They release oxygen into the atmosphere

• They cause global warming

Which of the following is an effect of ozone depletion?

• Increased plant growth

• Higher rates of skin cancer in humans

• Reduced temperatures in the stratosphere

• Decreased air pollution

What happens to the UV radiation that reaches Earth due to ozone depletion?

• It is absorbed by the Earth's surface

• It is reflected back into space

• It leads to an increase in atmospheric nitrogen

• It causes more health problems and damage to ecosystems

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NGSS.HS-LS2-6

What is one of the major human health risks associated with increased UV radiation due to ozone depletion?

• Respiratory diseases

• Eye cataracts

• Vitamin D deficiency

• Increased biodiversity

The Montreal Protocol, signed in 1987, aimed to:

• Reduce the use of fossil fuels

• Eliminate the use of ozone-depleting chemicals

• Increase the ozone concentration in the atmosphere

• Promote alternative energy sources

Tags

NGSS.HS-ESS3-4