Three ‘Rs’ used for the mitigation of solid wastes are A. Recover B. Reduce C.…

Concept

Waste minimisation follows a hierarchy: first prevent waste at the source, then extend the useful life of products, and finally return discarded material to production. These three actions reduce the amount that needs treatment or disposal.

Application

Classify each listed action by what it does in the waste stream.

• Reduce prevents waste generation by lowering material and resource use at the source.

• Reuse keeps a product or component in service again without converting it into a new raw material.

• Recycle processes discarded material so that it can become material for new products.

• Recover extracts usable material or energy after waste has already been generated; it is a broader recovery operation rather than one of the named three Rs in this formulation.

• Restrict means limiting an activity, but it is not the standard waste-minimisation term used in the three-R formulation.

Contrast and cross-check

The sequence prevention at source → repeated use → material reprocessing corresponds to Reduce → Reuse → Recycle. Therefore, the three Rs are Reduce, Reuse and Recycle.