Question

The main cause for abundant Coliform bacteria in the river Ganga is

• A. disposal of unburnt corpses into water
• B. discharge of effluents from electroplating industries
• C. washing of clothes
• D. immersion of ashes

Answer 1

The correct option is A

disposal of unburnt corpses into water

The correct option is A

Explanation of the correct option:

1. Coliform is a disease-causing microorganism that is commonly found in the human digestive organ.
2. The most prominent reason is the disposal of unburnt corpses in the water, it keeps piling up in the river Ganga water.

Explanation of the incorrect option:

Option B:

1. Effluent doesn't contain any disease-causing microorganisms.
2. It is mostly the impurities from industrial waste that causes river pollution and are not responsible for coliform bacteria.

Option C:

1. Detergent is a chemical that is not related to Coliform bacteria.
2. It contains phosphate salts, that cause a variety of water pollution as it inhibits biodegradation of organic substances.

Option D:

1. The immersion of ashes is not directly related to any microorganism.
2. It is responsible for polluting the river, like ashes from cremation submerged into the river and cause pollution especially to river Ganga.

Final answer: So, the main cause of abundant Coliform bacteria in the river Ganga is the disposal of unburnt corpses in the water.