Question

why should we not mixed or put these materials in one place only?​

Answer 1

Question:

why should we not mixed or put these materials in one place only?

Answer:

Don't mix or combine hazardous materials unless you know you can do so safely. Many products can cause violent reactions or release poisonous fumes when combined. Transferring flammable liquids like gasoline, from one container to another can make static electricity that could ignite the fumes.

Explanation:

It makes much more sense to classify materials according to the way we use them. ... One of the interesting things we see from classifying materials this way is the incredible versatility of certain materials that can be used in many different ways.

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