Answer true or false, as appropriate:
I. The decrease in the ozone layer is caused by the reaction of freons in the atmosphere.
II. Ozone in the stratosphere prevents ultraviolet radiation from harming living beings.
III. The rapid destruction of the ozone layer is causing an increase in skin cancer.
IV. High concentrations of ozone are highly toxic to marine life.


I. The decrease in the ozone layer is caused by the reaction of freons in the atmosphere.
II. Ozone in the stratosphere prevents ultraviolet radiation from harming living beings.
III. The rapid destruction of the ozone layer is causing an increase in skin cancer.
IV. High concentrations of ozone are highly toxic to marine life.
a) VVVV
b) VVFV
c) VFVV
d) FVVV
e) FFVV