Pollution level at Keenjhar rises
Keenjhar Lake, one the major sources of water supply to Karachi and Thatta district, Pakistan has developed eutrophication, which occurs when lake water becomes enriched with nutrients, and causes
Keenjhar Lake, one the major sources of water supply to Karachi and Thatta district, Pakistan has developed eutrophication, which occurs when lake water becomes enriched with nutrients, and causes