Understanding the Ozone Layer

What is the primary function of the ozone layer?

• To provide oxygen to the atmosphere

• To protect Earth from the Sun's harmful UV rays

• To produce rain

• To regulate the Earth's temperature

What causes the depletion of the ozone layer?

• Deforestation

• Volcanic eruptions

• Chlorofluorocarbons (CFCs) and nitrogen oxide

• Carbon dioxide emissions

What can significantly help in healing the ozone layer?

• Increasing industrial activities

• Using more fossil fuels

• Reducing the use of CFCs and properly disposing of old appliances

• Planting more trees

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

Why is it recommended to replace air conditioners or refrigerators that are more than 20 years old?

• They may use CFCs which harm the ozone layer

• They are less energy efficient

• They are not compatible with modern homes

• They tend to be louder

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

What is the origin of the word 'ozone'?

• Latin for 'layer'

• German for 'shield'

• Greek for 'smelly'

• French for 'blue'

How long can CFC molecules last in the atmosphere?

• Up to 200 years

• Up to 150 years

• Up to 100 years

• Up to 50 years

What did Carl Sagan imply about the hole in the ozone layer?

• It is a natural phenomenon that occurs periodically

• It signifies human complacency towards environmental issues

• It indicates the strength of the Earth's atmosphere

• It is a sign of the Earth's end

Tags

NGSS.HS-ESS3-5