It is a blanket around the earth

1. conpuesto of

2. inportancia

3. thinning of the ozone layer

4. NATALIA FIGUEROA GUARDO 10-1

5. OZONE LEYER

6. agugero Ozona

6.1. choloflurocabono containing gases that are found in latos of aereoee

7. ultraviolet rays

7.1. cause

7.1.1. skin cancer

7.1.1.1. affect crops

7.1.1.1.1. they can kill small animals and plants