I’m not sure I think it’s D.) Hope I could help :)))
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Answer: Oxygen from the atmosphere is combined with carbohydrates to liberate the stored energy. Water and carbon dioxide are byproducts. Notice that photosynthesis and respiration are essentially the opposite of one another. Photosynthesis removes CO2 from the atmosphere and replaces it with O2.
Explanation:
Alkalinity<span> is the name given to the quantitative capacity of an aqueous solution to neutralize an acid</span>
Because there will eventual reach a point where the food or some other necessity runs out and instead of growth continuing, it stays at relatively constant.