Answer
(d)
Work Step by Step
Efficient composting requires an abundance of aerobic bacteria, not anaerobic bacteria.
Aerobic composting involves the breakdown of organic matter in the presence of oxygen, which leads to the production of compost and minimal odor.
Anaerobic composting, on the other hand, occurs in the absence of oxygen and can produce unpleasant smells and greenhouse gases like methane. Proper aeration is essential for successful composting.
The answer is (d).