According to Robert May, the global species diversity is about [NEET-2020]

(A)20 million
(B)50 million
(C)7 million
(D)1.5 million

The NCERT line that answers it

Verbatim line

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.

Chapter: Biodiversity and Conservation
Section: 13.1.1 How Many Species are there on Earth and How Many in India?
Page: 1
Words matched: 30 of 30

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'a more conservative and scientifically sound estimate made by Robert May places the global species diversity at about 7 million', which directly matches the correct answer and distinguishes it from the extreme estimates of 20-50 million.

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