Aim: How does ozone get depleted in our atmosphere?

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Presentation transcript:

Aim: How does ozone get depleted in our atmosphere? DO NOW Interpret the meaning behind the picture that you see.

Ozone Part of ozone layer Present in the upper atmosphere Protects us from sun’s harmful UV radiation UV= ultraviolet

Ozone Layer

Depletion of Ozone Industries release pollutants CFC’s are pollutants that cause thinning of the ozone layer or ozone layer holes CFC’s also are released from refrigerators, air conditioning units, aerosol cans

Effect Ultraviolet radiation reaches our planet Radiation is a mutagen, so our DNA can be changed Increased rates of skin cancer Some plants are killed

Solution Do not use or limit the use of CFC gases Use safe products in refrigerators, air conditioners and aerosol cans

Video https://www.brainpop.com/science/earthsystem/ozonelayer/

Group Activity CFC Concentration Year

Group Activity Questions On looseleaf, with a partner, write down the answers to the following questions: What is the independent variable in the graph? What is the dependent variable in the graph? What happened ~1988, to the CFC concentration?

Homework Answer the following questions, on loose-leaf: 1. What type of products release CFC’s into the environment? 2. What do CFC’s do to the ozone layer? 3. How are humans affected by the thinning of the ozone layer?

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