Q. Consider the following statements:

1. Tropical region is rich in diversity as compared to temperate region.
2. Temperate region is rich in diversity as compared to polar areas.
3. The tropical Amazonian rain forest has the greatest biodiversity on earth.

Which of the above is / are correct?
Answer: All of the above
Notes: India, with much of its land area in the tropical latitudes, has more than 1,200 species of birds. A forest in a tropical region like Equador has up to 10 times as many species of vascular plants as a forest of equal area in a temperate region like the Midwest of the USA. The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth- it is home to more than 40,000 species of plants, 3,000 of fishes, 1,300 of birds, 427 of mammals, 427 of amphibians, 378 of reptiles and of more than 1,25,000 invertebrates.