Which set names the three main factors that affect the rate of photosynthesis?
Explanation
The reaction needs light for its energy and a gas from the air as a raw material, and like any reaction it speeds up as its particles gain energy with warmth, so those three set how fast it runs. Fertiliser supplies mineral ions that a plant needs in order to grow, but adding more of them does not drive the sugar-making reaction faster, and the gas the reaction gives off is a product rather than a requirement.