Solid Waste Management MCQ with answer and solution

Concept

3R means Reduce, Reuse and Recycle. It is a basic idea for managing all types of waste.

Step-by-step solution

1. 3R stands for Reduce, Reuse, Recycle. 2. These three steps lower the amount of waste that goes to landfill. 3. This idea applies to all waste: solid, plastic, e-waste and so on. 4. So the 3R principle is a concept for waste management. Answer: (A).

Explanation

The 3R principle means Reduce, Reuse and Recycle. It aims to cut the amount of waste we make and to use materials again. It is a general waste management concept, not limited to one type of waste.

Why the other options are wrong

B: Sanitation is about hygiene and safe disposal of human waste, not the 3R idea. C: Water treatment removes impurities from water; 3R is not its main concept. D: Plastic waste is only one part of waste; 3R applies to all waste, so (A) is the better answer.

Shortcut

3R = Reduce, Reuse, Recycle, which means waste management.

Common mistake

Choosing (D) because recycling is often linked with plastic, but 3R covers all waste.