What will happen to animals if all plants vanish and vice verse?

Answer 1

If all plants vanish from the planet, then there will be no food for plant eating animals and they will die of hunger and the animal eating animals (Carnivorous.) die as they will not have plant eating animals to eat. Also Carbon bi oxide will go on increasing and Oxygen go on decreasing, as animals will respire to produce it and plants are are not there to convert it back to Oxygen. Vise verse if all animals vanish from the earth, then Plants will not get the Carbon bi oxide, required for photosynthesis and they will also die of starvation, as they also need food for there growth and respiration.

Answer 2

Suppose all the plants vanish from the earth. Then plant eating animals will have nothing to eat. They will not survive. The carnivorous animals will not have the plant eating animals to eat and they will die of starvation.If the animals vanish from the earth, then the the plants will consume carbon bi oxide. There will be no animals to give back the carbon bi oxide to plants. as a result the plant will not be able to survive. Secondly so many plants depend on insects and animals for pollination and reproduction. They will disappear in absence of insects. So plants and animals depend on each other for survival.