Question

Increasing

Answer 1

Answer:

Increasing  carbon dioxide  concentration  increases the  rate of  photosynthesis  as carbon  dioxide (CO2) is a limiting factor.

Explanation:

The photosynthetic rate is affected by certain factors, these can end up minimizing the potential amount of carbohydrate made by photosynthesis. For this type of biosynthesis, carbon dioxide is essential: it provides the inorganic carbon that is incorporated into carbohydrate molecules.

A decrease in the concentration of the available carbon dioxide may slow the photosynthetic rate.