13.2 The Ozone Shield

13.2 The Ozone Shield

Environmental Science

Multiple Choice

Ozone is made up of what atoms? (Chemical make up of Ozone)

• O2

• O3

• Just single Oxygen atoms

• Carbon and Oxygen

Multiple Choice

CFCs are made up of all of the following atoms except. (Chlorofluorocarbon)

• Carbon

• Chlorine

• Fluorine

• Lead

Open Ended

State and briefly explain one reason why it is so difficult to protect the Ozone layer.

Review

• Ozone is made up of O3

• CFCs are human-made chemicals that are damaging the Ozone layer and stay in the atmosphere for long periods of time.

• The 'ozone hole' is a thinning of stratosphereic ozone layer

• Extreme UV radiation can cause mutations and cancers

• The threat to the Ozone layer is still continuing today and is difficult to protect

• If the Ozone layer disappeared, the climate on Earth would get extremely hot.