Which of the following contaminants are found in groundwater in India 1 Arsenic 2 Fluoride 3 N...........

Geography Physiography of India

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Which of the following contaminants are found in groundwater in India?

1) Arsenic

2) Fluoride

3)Nitrate

4)Sulphate

Select the correct answer using the codes below.

1 and 2 only

1 and 3 only

2,3 and 4 only

All of the above

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Explanation:

Arsenic pollution of ground water in West Bengal was first reported in early eighties. The occurrence of arsenic is mainly due to two reasons : natural and anthropogenic. So, 1 is correct.

High concentrations of fluoride in groundwater are common in some of the semi-arid areas of Rajasthan ,southern Punjab ,Gujarat ,Karnataka, Tamil Nadu ,Madhya Pradesh and Southern Haryana . So, 2 is correct.

Groundwater in at least 387 districts has nitrate levels. So, 3 is correct.

The sulphate content in groundwater is high in regions like Hardwar and Dehradun. So,4 is correct.