Question

What is the main reason for the pollution of River Ganga by coliform bacteria?

• A. Immersion of unburnt corpses
• B. Chemical effluents from industries
• C. Washing of clothes
• D. Untreated sewage dumped in it

Answer 1

Answer:

D. Untreated sewage dumped in it

• Untreated sewage dumped in the river Ganga is a major source of coliform bacteria pollution.

• The presence of coliform bacteria in the Ganges indicates that the water has been contaminated by fecal matter, which is harmful to human health.

• Untreated sewage contains a high load of pathogens, organic matter, and nutrients that contribute to the proliferation of coliform bacteria in the river.