(i) Name two waste products which are stored in old xylem in plants.
(ii) Name the process by which plants get rid of excess water. Name the pores through which this process takes place.

Explanation

(i) Resin and gums are the two wastes which are stored in old xylem in plants.
(ii) Transpiration is the process by which plants get rid of excess water.
Stomatal pores are the pores through which transpiration takes place.