According to the International Union for Conservation of Nature and Natural

Multiple Choice

According to the International Union for Conservation of Nature and Natural Resources (IUCN) , 73% of species have become extinct, endangered, vulnerable, or rare because of

A) chemical pollution of water and air.
B) stratospheric ozone depletion.
C) overexploitation of certain species.
D) alteration or destruction of the physical habitat.
E) global climate change resulting from a variety of human activities.