Question

According to the article on the 6th mass extinction, why is 1900 considered separately from 1500 as the time for modern extinction rates? A steep incline invertebrate extinction rate occurs following the Industrial Revolution A steep decline in vertebrate extinction rate occurs following the industrial Revolution The extinction rate increases up until 1900 and then stabilizes It is only after 1900 that we notice extinction rates higher than background rates

Answer 1

According to the article on 6th mass extinction, 1900 is considered seperately from 1500 as the time for modern extinction rates because

• It is only after 1900 that we notice extinction rates higher than background rates.

The modern extinction rates are exceptionally high and scientists opine that sixth mass extinction is under the way. About 94% of populations of 77 mammal and bird species have been lost in the last century. Since 1900, 2,37,000 populations of the species have vanished. The extinction rates are 117 times higher than the background rate higher than the researchers' own estimates five years ago, where the scientists have underestimated the rates of extinction.

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