A planting trees around a farm
Explanation:
Trees majorly help us out, by converting carbon dioxide into oxygen. If you cut down trees that releases carbon dioxide out into the air.
Answer:
in physiology respiration is the movement of oxygen from the outside environment to the cells with tissues and the removal of carbon dioxide in the opposite direction .. in contrast exhalation is usually a passive process
<em><u>hop</u></em><em><u>e</u></em><em><u> it's</u></em><em><u> helpful</u></em>
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