Q. Consider the following statements regarding biodiversity:
1. Biodiversity is richer in Polar Regions.
2. In Tropical regions one finds larger and larger populations of fewer and fewer species.
Which of the statements given above is/are NOT correct?
Answer: C
Notes:
Explanation: Biodiversity is a system in constant evolution, from a view point of species, as well as from view point of an individual organism.
- The average half-life of a species is estimated at between one and four million years, and 99 per cent of the species that have ever lived on the earth are today extinct.
- Biodiversity is not found evenly on the earth. It is consistently richer in the tropics.
- As one approaches the Polar Regions, one finds larger and larger populations of fewer and fewer species.
Source: NCERT – Fundamental of Physical Geography
