Observing 4 ‘R’s

Reduce means using less material

Reduce means using less material and producing less waste. It is the first step in careful use of resources.

Re

Re-use means using an item again instead of throwing it away after one use. Many materials can serve another purpose before becoming waste.

Recycle means converting used materials into

Recycle means converting used materials into new products. Plastic cans, bottles, and bags are recyclable materials.

Recover means getting value from waste

Recover means getting value from waste materials through careful use and management. It is one of the four groups used in the chapter activity.

With population growth and changing lifestyles

With population growth and changing lifestyles, consumption of materials and resources rises. Human activities lead to depletion of resources and addi