Match the items given in column I with those in column II and select the correct option given below. 

Column I		Column II
A.	Eutrophication	(i)	UV-B radiation
B.	Sanitary landfill	(ii)	Deforestation
C.	Snow blindness	(iii)	Nutrient enrichment
D.	Jhum cultivation	(iv)	Waste disposal

	A	B	C	D
1	ii	i	iii	iv
2	i	iii	iv	ii
3	iii	iv	i	ii
4	i	ii	iv	iii

A-III, B-IV, C-I, D-II
A. Eutrophication is the process of nutrient enrichment of water bodies, leading to excessive growth of algae and other aquatic plants. This results in reduced oxygen levels in the water, which can harm fi sh and other aquatic animals. 
B. Sanitary landfill is a method of waste disposal in which waste is buried in a designated area and covered with soil or other materials. This helps to reduce the negative impact of waste on the
environment. 
C. Snow blindness is a condition that occurs when the eyes are exposed to excessive amounts of UV radiation, usually from sunlight reflected off snow or ice.
D. Jhum cultivation is a type of slashandburn agriculture in which forestland is cleared, burned, and cultivated for a short period of time before being abandoned for a new area of forestland. This can lead to deforestation.