Because without it you would have no support to stand
Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. ... Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. Hope this helps
Decomposers also break down the bodies of dead organisms resulting in nitrogen being returned to the soil as ammonia. In some conditions denitrifying bacteria in the soil break down nitrates and return nitrogen to the air.
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hope this helped
Answer:
Your body uses oxygen to get energy out of the food you eat.
Explanation:
Oygen breaks down sugar in cellular respiration
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