Section B: Give a very short answer to the question given below.
Explain in brief two ways by which leaves of a plant help in excretion.
1. ______ is the process by which water is lost in the form of droplets from small pores called hydathodes on the leaf margin of herbaceous plants.
2. The loss of water in the form of water vapour from the aerial parts of the plant body is known as ______ .