Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Knowledge Ecology and Environment
________ is the over-enrichment of water by nutrients such as nitrogen and phosphorus.
1
Eutrophication
2
Acidification
3
Water Pollution
4
More than one of the above
5
None of the above