Match the parts of sentences given in columns A, B and C to write five complete sentences.

Column-A	Column-B	Column-C
a) Environment pollution is	i) to control such an	i) is polluted by garbage.
b) In big cities, air	ii) on in rural and urban areas	ii) alarming problem.
c) Even the ground we walk	iii) in various ways	iii) in our country.
d) Water is also polluted	iv) is constantly being polluted	iv) of the world.
e) Steps should be taken	v) one of the greatest problems	v) by the smoke of vehicles.