Match the following and choose the correct option.

	Column-I		Column-II
(a)	Species richness	(i)	Refers to how close in numbers each species in an environment is
(b)	Species evenness	(ii)	Identification and enumeration of plant and animals species of an ecosystem
(c)	Species endemism	(iii)	Species confined to that region and not found anywhere else
(d)	Species composition	(iv)	The number of different species represented in an ecological community, landscape or region

	a	b	c	d
1.	i	ii	iii	iv
2.	iv	i	iii	ii
3.	ii	iii	i	iv
4.	ii	i	iii	iv