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How do compression and tension make things strong?

Answer

Compression is the degree to which a substance has decreased in a given dimension after being or while being subject to stress and tension is a force applied on a body acting to stretch or elongate it. They make things strong like bridges by converting forces like wind and weight acting upon them into compressive and tensile forces. When these forces act, they act upon each other, one inward while the other outward and thus cancelling out each other that is by each load transferring the force it exerts on another load but exerting an opposite force.
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