Question

what happens to photosynthesis in a plant if there is too little or too much water present? photosynthesis will slow down. photosynthesis will speed up. photosynthesis will not change.

Explanation:

Water is a key reactant for photosynthesis. Too little water causes stomata to close, limiting carbon dioxide intake, which slows photosynthesis. Too much water reduces oxygen availability to roots, damages root function, and limits nutrient uptake, also slowing photosynthesis.

Answer:

Photosynthesis will slow down.