Consider the following statements:
1. Coliform bacteria is one of the microbial indicators of water contamination
2. Mixing of sewage with ground water results in increased nitrate level
Which among the above is/ are correct statements?

Answer: [C] Both 1 & 2

Both are correct statements
Presence of coliform bacteria, in water gives a clear indication of faecal contamination of water. Sewage mixing with water also results in increased level of nitrate in water.

This question is a part of GKToday's Integrated IAS General Studies Module