harmful material

What Materials Are Useful?

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What Materials Are Useful? Bamboo. Bamboo is considered to be a renewable source because it is natural and it grows so fast. … Repurposed Wood. Reclaimed wood is another favorite resource. … Fabrics. Some other fun materials to reuse are fabrics. … Plastic. Why are materials very useful? From stone and bronze to steel and

What Are Useful Changes?

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What Are Useful Changes? Useful changes refer to beneficial changes made by us to activities we do in our daily life. Some of them are: *Turning off electric/electronic appliances when not in use. *Turning off the engine of the vehicle while waiting at a traffic signal. *Recycling old newspapers by converting them into carry bags.