Answer :
At the point when a herbivore eats, just a small amount of the vitality turns out to be new body mass; whatever is left of the vitality is lost as waste or spent by the herbivore itself to complete its own particular life forms. In this way, a meat eater needs to eat numerous herbivores to get adequate vitality to survive and develop.
No this is not possible. Carnivores depend upon herbivores for their nutrition. Therefore, the total biomass of herbivores should always exceed the total bioass of carnivores. During lack of herbivores, carnivores will strave and dimish, so their number also decrease.