OpenOlympiad
Concept 7 of 8Foundation
Video

The 3 R's and composting

The waste pyramid (best to worst):

  1. Reduce — use less. Buy only what you need.
  2. Reuse — use again (bags, bottles, jars).
  3. Recycle — process into new products (paper, metals, glass).

Composting: pile up biodegradable kitchen and garden waste in a bin. Microbes break it down in weeks into rich, dark soil (humus) — a natural fertilizer.

Example
A family of 4 produces ~1 kg of wet waste daily. Composting turns ~365 kg/year into free organic manure.
💡 Tip:Adding 'Refuse' (say no to plastic straws etc.) makes it 4R's — even better.
Prefer a video? Open YouTube search for “3R reduce reuse recycle compost class 6

🎯 Try it!

5 questions to check what you just read.

0 / 5
  1. Q1.The 3 Rs are:
  2. Q2.Best order of preference:
  3. Q3.Composting turns kitchen waste into:
  4. Q4.Carrying a reusable cloth bag is an example of:
  5. Q5.Glass bottles should ideally be: