why is photosynthesis vital for life?\na. photosynthesis helps maintain atmospheric levels of oxygen and…

why is photosynthesis vital for life?\na. photosynthesis helps maintain atmospheric levels of oxygen and carbon dioxide.\nb. photosynthesis is a direct means of energy production for many organisms.\nc. photosynthesis is an indirect means of energy production for many organisms.\nd. all of the above\n\nplease select the best answer from the choices provided\na\nb\nc\nd

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