Study the diagram given below and answer the questions that follow :

What do we observe with regard to the level of water when this set-up is placed in (1) bright sunlight (2) humid conditions (3) windy day

Explanation

(1) In bright sunlight, the level of water decreases quickly. (2) In humid conditions, level of water does not decrease for a long time. (3) On windy day, level of water decreases very quickly.