more information on this topic is available on the web through these links -- useful links environment 

1. How was the ozone layer damage detected?

2. Over what region is the change the most significant?

3. What compounds make up the atmosphere?

4. In Which layer of the atmosphere are these gases found?

5. Where is the ozone layer and what does this layer do for us?

6. Explain the process by which CFC'S destroy the Ozone layer.

7. What is electromagnetic radiation and where does it come from?

8. What did the UV rays do to the plants at the Univ. of Maryland?

to pine trees?

to soya plants?

9. The animals at University were also exposed. What happened to them?

10. What is the mechanism by which the damage to plants and animals occurs?

11. What are CFC's and what do we use them for?

a.

b.

c.

d.

12. How was the earth's atmosphere created in the first place?

13. What can you do to reverse the trend towards destruction of the atmosphere?

14. Why is important that something be done to reverse the trend in the near future?

for more information and activities - see ozone depletion lecture notes