English, asked by Hyemi2008, 1 month ago

sorry saniya siso , i am also sis !!

DEFINE ECO

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Answered by 16058a08bkn1

2

Answer:

Echo is the sound heard after reflection from a rigid surface such as a cliff, a hillside, the wall of a building etc

Answered by Anonymous

3

Answer:

Eco is an abbreviation for ecology, the system of relationships between living things, and with their environment. Friendly implies beneficial, or at least not harmful. It should follow that the term eco-friendly, when added to services or products, indicates positive, or at least not harmful, effects on living things.

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