Question

what will happen if all the carnivores are removed from the earth

Answer 1

If all the carnivores are removed then the flora and fauna would overgrow. Soon the inhabited places would be taken over by domesticated omnivores and herbivores.

Answer 2

If the carnivores are removed from the earth , the herbivores would multiply in great numbers and feed on the plants and all that has chlorophyll probably , which would finally result in DECREASE of oxygen producing PLANTS ; that implies NO LIFE