Not only the food of plants but also their wastes are useful to us. What evidences do you give for it?
A. 1) Plants are providing food for the entire living world through the process of photosynthesis.
2) They are also excreting different waste materials produced during various meta¬bolic activities. '
3) They are known as secondary metabolites which include Alkaloids, Tannins, Resins,
Gums and Latex, etc. ’ ; '
4) Alkaloids are used for various purposes as given below.
5) Chewing gum originally made of chicle, natural latex from plant.