Define the 4R principle in brief.

4R Principle

(i) Reduce:

• Limit your energy usage and only do what is absolutely necessary.
• To save resources, keep the criteria to a minimum.
• Utilize nonrenewable natural resources responsibly.

Example: We should choose paper bags over polythene bags whenever possible.

(ii) Reuse:

• Replace any single-use items gradually with reusable ones, such as mugs and water bottles.
• Reuse the packing (pallets, drums, bubble wrap or packaging peanuts).
• Recycling shipping containers (boxes, inserts, cartons).
• Refill printer cartridges and reuse them.

Example: Reusing plastic bags allows for the creation of attractive items.

(iii) Recycle:

• All materials that can be recycled chemically should be used because they can be transformed back into new materials.
• Recycle as much paper, plastic, metal, and glass from everyday items as you can.
• Compost food scraps or use them as fertiliser for a nearby farm.
• Recycle all materials, even damaged clothing.
• If you can, recycle all of your electronics.

Example: Plastic materials.

(iv) Recovery: If any waste is left over after being reused and recycled, we can use it at our waste-to-energy plant to produce energy. This process is called recovery.

Summary:

Define the 4R principle in brief.

The 4Rs — reduce, reuse, recycle, and recover — are explained. Waste is described as undesired and uses fewer resources and is considered a non-useful substance. Garbage can also refer to waste that is visible in our immediate environment.