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Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?
Options
(a) Laughing gas
(b) Propane
(c) Mustard gas
(d) Marsh gas
Correct Answer:
Marsh gas
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Conservation and Environmental Issues
(111)
Subject: Biology
(4253)
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