Sound is one of many forms of energy with which you must be familiar. Sound is a property of vibrating […]
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Sound is one of many forms of energy with which you must be familiar. Sound is a property of vibrating […]
Minerals are usually natural endowment to particular communities. Minerals are naturally-occurring substances in the soil. Many minerals resources are found […]
We grow plants and rear animals for food, to produce materials that could be used for clothing, shelter and for […]