Why should the qauntity of Plants and Animals remain in balance? ans quickly
@Anindya:- You can refer to the answer provided by your friends. Although I would like to add a point to it-
Both plants and animals are part of our ecosystem which are interdependent on each other & on other components also. If any of these two will either increase or decrease it will result in complete disturbance of ecological balance.
@sd_alihasan:-Good efforts, keep posting...