Mini Assessment-Ozone Depletion, Global Warming, Climate Change

What is the ozone layer?

• A layer of gas that helps keep Earth warm

• A layer of gas that shields Earth from UV light

• A layer of gas that creates a magnetic field around Earth

• A layer of gas that blocks visible light from the sun

What chemicals are most responsible for ozone depletion?

• Carbon dioxide

• Carbon monoxide

• Chlorofluorocarbons

• Chlorine gas

What is an effect of ozone depletion?

• Global warming

• Increased strength of Earth's gravity

• Increased visible light that reaches Earth's surface

• Increased UV light that reaches Earth's surface

Tags

NGSS.HS-ESS3-6

NGSS.HS-ESS2-4

NGSS.HS-PS4-4

Why are scientists concerned about destruction of the ozone layer?

Answer explanation

Increased UV light could cause more skin cancer cases. Also, increased UV light could kill algae in the ocean, which is often the base of many aquatic food chains. Without algae, aquatic food chains collapse.

Tags

NGSS.HS-ESS3-6

What is the phenomenon that helps keep Earth warm?

• Ozone depletion

• Greenhouse effect

• Bluehouse effect

• Industrialization

Tags

NGSS.MS-ESS3-5

Which of the following is a greenhouse gas?

• Oxygen

• Ozone

• Carbon dioxide

• Nitrogen

What human activities are blamed for increased levels of CO₂ in the atmosphere?

• A) Burning fossil fuels

• B) Deforestation

• C) Using aerosol cans

• D) Both A and B

Tags

NGSS.MS-ESS3-5

Why are scientists concerned about an increase of carbon dioxide in the atmosphere?

Answer explanation

An increase in carbon dioxide could cause global warming. An increase in global temperatures could change the climate on Earth. It could also lead to melting of the polar ice caps, which could cause coastal flooding and change ocean current patterns.

Tags

NGSS.HS-ESS3-5

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Why is there a debate over global warming?

• The predictions about what will happen to Earth's climate are startling

• People will have to make changes to how they live their lives

• Developing new technologies to curb CO2 emissions can be expensive

• All of the above

The entire scientific community agrees:

• global warming is occurring

• CO2 is the cause of global warming

• Earth's temperature is increasing

• Earth's temperature is decreasing

Tags

NGSS.HS-ESS3-6

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5