question_answer 19)

  Amongst the animal groups given below, which one has the highest percentage of endangered species? (a) Insects                           (b) Mammals                     (c) Amphibians                  (d) Reptiles

Answer:

                  (c) Amphibians have the highest percentage presently, 32% of all amphibian species in the world face the threat of extinction. Other than these, 23% of all mammal species and 12% of all bird species also facing the risk.