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Why do we need to know the uses of useful ang harmful materials?

Why do we need to know the uses of useful ang harmful materials?

Asked by: Guest | Views: 156
Total answers/comments: 1
Guest [Entry]

"Answer:

We need to know what materials are useful and harmful for us to avoid accident or harm. ... Materials are considered useful when it serves a purpose.

Explanation:

because These materials may have properties such as durability, resistance to water, heat, or acid, flexibility, elasticity and hardness."