Which gas is produced by the decay of dead plants in conditions with no oxygen?

Answer and explanation

Correct answer: D. Methane, produced by anaerobic microbes

  1. Step 1: Decay without oxygen is anaerobic. Step 2. It produces methane in swamps and landfill sites. Answer: Methane, produced by anaerobic microbes. Why not the others: Aerobic decay uses oxygen.

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