Match the following columns:

Column I	Column II
a. Nitrate -N	1. Eutrophication
b. Nitrous oxide	2. Methemo-globin emia
c. Nitrogen and phosphorus	3. Ozone layer
d. Cadmium as contaminant in zinc and phosphatic fertilizers	4. Heart and kidney disease

A. a-2, b-1, c-3, d-4

B. a-2, b-3, c-1, d-4

C. a-4, b-1, c-3, d-2

D. a-4, b-3, c-2, d-1

Answer: Option B

Solution(By Examveda Team)

Drinking water with high nitrate can cause a fatal disorder called Methemo-globinemia.
Nitrous oxide is a greenhouse gas and it destroys the Ozone layer.
An overabundance of nutrients like nitrogen and phosphorus in water leads to Eutrophication.
Cadmium is a toxic heavy metal, present as a contaminant in zinc and phosphatic fertilizers are fatal to our Heart and kidney.