Since the origin of life on earth, there were five episodes of mass

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.

(i) The current species extinction rate are estimated to be 100-1000 times faster than in prehuman times.
(ii) Human activities
(iii) To prevent sixth extinction to take place we would:
(a) Preventing habitat loss and fragmentation
(b) Checking over exploitation
© Preventing alien species invasion
(d) Preventing co-extinction
(e) Conservation and preservation of species.