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3 years ago

13

The pictures below show a bottle made of plastic and a block made of concrete.

2 answers:

zzz [600]3 years ago

6 0

Explanation :

The given picture shows a plastic bottle and a block made of concrete.

Minerals are the naturally occurring substance. All minerals have a specific chemical formula.

So, the statement that is correct about the plastic and the concrete is :

Both plastic and concrete are not minerals. This is because they are made by humans.

Plastics are produced by a process of polymerization or polycondensation process and cement is produced by mixing water, aggregate, and cement, etc.

Hence, the correct option is (b).

blsea [12.9K]3 years ago

5 0

<span>Mineral is an inorganic solid, characterized with a definite chemical composition and ordered internal structure.</span>
Both plastic and concrete are not minerals because they are made by humans. They are not naturally occurring materials, which the minerals are.

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3 years ago

If the mass of both weights is 225 gm, the first mass is located 20∘ north of east, the second mass is located 20∘ south of east

Montano1993 [528]

Answer:

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3 years ago