Since the origin of life on Earth, there were five episodes of mass extinction of species .
(i) How is the 'Sixth Extinction', presently in progress, different from the previous episodes ?
(ii) Who is mainly responsible for the 'Sixth Extinction' ?
(iii) List any four points that can help to overcome this disaster.

Explanation

(i) The current species extinction rate is estimated to 100-1000 time faster than in the pre-human era.
(ii) Human activities. (iii) (a) Preventing habital loss and Fragmentotion
(b) Checking overexploiting.
(c ) Preventing alien species invasion.
(d) Preventing co-extinction.
(e) Conservation/protection of species.