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Which of the following has less organic matter load?

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in Environmental Biotechnology by (64.7k points)
Which of the following has less organic matter load?

(a) Marshlands

(b) Marine sediments

(c) Landfill sites

(d) Fresh water

This question was addressed to me by my college professor while I was bunking the class.

The origin of the question is Anaerobic Treatment of Solid Wastes and Biogas Generation topic in division Biotechnology for Solid Waste Management of Environmental Biotechnology

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Correct answer is (d) Fresh water

Easiest explanation: Fresh water has the lowest organic matter load, and Marshlands, Marine sediments, Landfill sites, rice fields are the areas with the highest organic matter load. So, organic matter loading is an important parameter of anaerobic digestion. Anaerobic digestion is carried out by various bacteria involved in three major steps of anaerobic digestion.

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