Teaching UKPSC Lecturer Mock Test Series 2024 General Knowledge Ecology and Environment Environment Problems
Consider the following statements regarding Ammonia:
1. The acceptable limit of ammonia in drinking water is 500 ppm.
2. Increase in the concentration of ammonia can decrease Biological Oxygen Demand.
3. Toxicity of ammonia increases as temperature decreases.
Which of the statements given above is/are not correct?
1
1 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3