A) 99% of existed species are extinct
B) 25% of existed species are extinct
C) 40% of existed speciesare extinct
D) 30% of existed species are extinct
Correct Answer: D
Solution :
The most serious aspect of the loss of biodiversity is the extinction of species. A species is considered extincted when no member of the species remains alike anywhere in the world. Near about 99% of all species that have ever lived are now exincted.
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