Multiple choice The effect of the depletion of an ozone layer is that _________________. the average temperature of earth's surface will increase the oxygen content of the atmosphere will decrease increased amount of ultraviolet radiation will reach earth's surface sea levels will decrease Reveal answer Fill a bubble to check yourself C Correct answer Explanation The Ozone Layer acts as a shield for us from very harmful UV rays. If we damage the Ozone Layer, we would put ourselves at an increasingly greater risk.