Question

In each of the following situations what happens to the rate of photosynthesis?

(a) Cloudy days

(b) No rainfall in the area

(c) Good manuring in the area

(d) Stomata get blocked due to dust

Answer 1

(a) The rate of photosynthesis decreases during cloudy days due to lesser availability of sunlight.

(b) The rate of photosynthesis decreases when no rainfall is present in the area due to lack of water.

(c) The rate of photosynthesis increases in the area where good manuring is done as it increases the amount of other nutrients in soil which are required for the functioning of plants.

(d) The rate of photosynthesis decreases when stomata get blocked due to dust as it obstructs the gaseous exchange.