engineering recuitment MPPGCL JE 2024 Mock Test General Knowledge Ecology and Environment Environmental pollution
The lower the amount of biological oxygen demand (BOD) in a certain segment of water
1. The greater the amount of organic matter available for oxygen consuming bacteria.
2. Lower could be the level of pollution in the water
Select the correct answer code:
1
1 only
2
2 only
3
Both 1 and 2
4
Neither 1 or 2