Question

Which among the following statements explains why tropical regions have a richer biological diversity than other regions?

• A. 33%
• B. 53%
• C. 60%
• D. 36%

Answer 1

Answer: (A), (C)

The correct options are
A

33%

C

60%

Regions closer to the equator are usually rich in biological diversity and number of species. There are several theories that could explain such a sharp increase in diversity as compared to the polar and sub-polar region. A case of mass extinction in the polar regions could have snuffed out almost all life forms present in the area. Another theory is that the stable and constant climate of the tropical region is conducive to the survival of all life forms, thereby resulting in a higher number of species.