The blank spaces in the task content should be filled with is; Three(3), atmosphere and ultraviolet rays of the sun.
<h3>What is Ozone?</h3>
Ozone is a trioxygen molecule; contained in the upper atmosphere with a sole aim of protecting biological life against ultraviolet rays of the sun. The ozone layer is however depleted to Oxygen molecule in the lower atmosphere.
Read more on ozone layer;
brainly.com/question/15444718
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I know the answer but where is the pic to show the acaod
An independent variable is the one that you change and the dependent variable that changes when he independent variable changes.
