NEET Botany
Water Pollution Biological Oxygen Demand
Low Priority
Consistency: 5%
Weightage: 1 / 20 Yrs
High-Yield Trend
1
2011 Questions 1 MCQs
01
PYQ 2011
easy
botany ID: neet-201
Which one of the following statements is not true?
| 1. | Concentration of dissolved oxygen below 5 ppm is good for the growth of fish. |
| 2. | Clean water would have a BOD value of less than 5 ppm. |
| 3. | Oxides of sulphur, nitrogen, and carbon are the most widespread air pollutant. |
| 4. | pH of drinking water should be between 6.5-8.5. |
1
(1)
2
(2)
3
(3)
4
(4)