Question

We must observe economy in the use of materials

Answer 1

Observing the economy in the use of materials.

Explanation:

• Observing the economy in the use of materials is a need of the hour to maintain sustainability and substance of human life on earth.

• Wealth out of waste is a perfect and relevant notion to ensure maximum use of available natural resources.
• We have enormous available natural resources at our disposal, but it is significant how much wastage goes unnoticed and how much enough of awareness is amongst every person on this planet.

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