Question

The use of chemicals like CFCs has endangered the _________ layer.

Answer 1

Ozone:

1. CFC is present in the emissions from jet airplanes.
2. It is used in refrigeration.
3. CFC aerosol depletes the ozone layer in the higher atmosphere.
4. Thinning of the ozone layer permits more of the harmful ultraviolet radiation to reach the earth.
5. UV rays cause sunburn, blindness, and the inactivation of proteins, RNA, DNA, and plant pigments.

Final answer: The use of chemicals like CFCs has endangered the ozone layer.