Fill in the blanks with suitable words :
(i) Loss of species which occurred in the geological pasr at a…….. Rate, is called natural extinction.
(ii) Colonisation of tropical Pacific Islands by humans have resulted in extinction of………. Species of native birds.
(iii) Dodo from......and........from Australia have become extinct in last 500 years.
(iv) Anthropogenic extinction is causing a.........mass extinction of species.

Explanation

(i) Very slow,
(ii) More than 1000,
(iii) Mauritius,Thylacine
(iv) Sixth