Question

Choose the wrong statement:

• A. Species diversity increases as we move away from the equator towards the poles.
• B. Stellar's sea cow and passenger pigeon got extinct due to over exploitation by man.
• C. Lantana and Eichornia arc invasive weed species in India.
• D. The historic Convention on Biological Diversity was held in $1992$.

Answer 1

Answer: (A)

Species diversity increases as we move away from the equator towards the poles.

Answer 2

Species diversity on earth is not uniformly distributed but shows interesting patterns. It is generally highest in the tropics and decreases towards the poles. Important explanations for the species richness of the tropics are: tropics had more evolutionary time they provide a relatively constant environment and they receive more solar energy which contributes to greater productivity.