Question

Identify incorrect statement
(A) More number of species are discovered in tropical then temperate countries
(B) According to I.U.C.N, the total no of plant & animal species described is slightly more than 1.5 million
(C) Ecological diversity of India is more than Norway
(D) Robert may places the global species diversity at about 7 millions​

Answer 1

Answer:

Option A is incorrect.

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Answer 2

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(A) More number of species are discovered in tropical then temperate countries.

➜ False.

❅ Species diversity decreases as we move away from the equator towards the poles due to:-

• (i)Temperature decreases and conditions become harsh.
• (ii)Both the amount and intensity of solar radiation decrease.
• (iii)Vegetation decreases.
• (iv)Fewer resources available to support species.

(B) According to I.U.C.N, the total no of plant & animal species described is slightly more than 1.5 million.

➜ True.

❅ According to the IUCN (2004), the total number of plant and animal species described so far is slightly more than : 1.5 million.

(C) Ecological diversity of India is more than Norway.

➜ True.

❅ Yes, India has greater ecosystem diversity than Norway. It is because India lies primarily in the tropical and sub'tropical zone while Norway lies near the Arctic region. This exposes the India to greater amounts of sunlight and thus greater level of ecosystem diversity.

(D) Robert may places the global species diversity at about 7 millions.

➜ True.

❅ Some extreme estimates range from 20 to 50 million, but a more conservative and scientifically sound estimate made by Robert May places the global species diversity at about 7 million.

Therefore,

The incorrect statement is (A) More number of species are discovered in tropical then temperate countries.

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