81.Which of the following is not currently a major cause of the global reduction in biodiversity? A. Overexploitation B. Global warming C. Habitat destruction D. Introduction of foreign predators and disease
option b. Global warming is predicted to be a major cause of extinction in the future. Global warming is the regular increase in the overall temperature of the earth's atmosphere which is generally credited to the greenhouse effect caused by increased levels of harmful gases like carbon dioxide, CFCs, and other pollutants.
