Question

Which of these statements is correct about plastic and concrete?

a) Both plastic and concrete are minerals because they are natural, solid materials.

b) Both plastic and concrete are not minerals because they are made by humans.

C) Plastic is a mineral because it has a definite crystal structure but concrete is not a mineral because it is organic.

D) Plastic is not a mineral because it is not formed under the ground but concrete is a mineral because it has a definite composition.

Answer 1

Do the same thing as in the last question. Which ones are impossible. Both plastic and concrete are man made

Answer 2

you are awesome thank you

Answer 3

Mineral A solid inorganic substance of natural occurrence.

Answer 4

Mineral= A solid inorganic substance of natural occurrence

Answer 5

so it is B

Answer 6

Yep