Which of the following option is correct for given statements?
(i) The IUCN Red List (2004) documents the extinction of 784 species in the last 500 years.
(ii) Bali, Javan and Caspian are subspecies of Tiger.
(iii) Dodo, Quagga, Thylacine, Stellar’s sea cow, Bali, Javan and Caspian are recently extincted animals.
(iv) The last twenty years have witnessed the disappearance of 27 species.
(v) If the present trends continue, nearly half of all the species on earth might be wiped out within the next 100 years.
(vi) The IUCN Red List (2004) documents the extinction of 338 vertebrates, 87 invertebrates and 359 plants in the last 500 years.
Text Solution
Verified by ExpertsB
Let’s verify each statement (from NCERT Biodiversity & Conservation data):
(i) IUCN (2004): about 784 species extinct in last 500 years → correct.
(ii) Bali, Javan, and Caspian tiger are subspecies of tiger → correct.
(iii) Dodo, Quagga, Thylacine, Steller’s sea cow, Bali/Javan/Caspian tiger are recently extinct animals → correct.
(iv) Around 27 species disappeared in the last 20 years → correct (NCERT value).
(v) If current trends continue, nearly 50% species may be lost in next 100 years → correct statement.
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