Question

which of these would increase the rate of photosynthesis and lead to the production of more glucose?
a increase in available sunlight and available carbon dioxide
b decrease in available sunlight and available carbon dioxide
c increase in available sunlight and decrease in available carbon dioxide
d decrease in available sunlight and increase in available carbon dioxide

Explanation:

Photosynthesis uses sunlight (energy) and carbon dioxide (reactant) to produce glucose. Increasing these reactants/energy sources boosts the rate. Option A increases both, so it increases photosynthesis and glucose production. Options B, C, D have decreases in key factors (sunlight or CO₂) which would not increase the rate.

Answer:

A. increase in available sunlight and available carbon dioxide