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Vadim26 [7]
3 years ago
8

Ill give a Brainliest if it is right

Biology
1 answer:
lukranit [14]3 years ago
4 0

Neither of these are minerals, B.

Its not A because, they are not natural materials but instead made up of natural materials, like a rubber tree.

Its not C because, like I said, plastic is made from rubber trees, this garentees it doesnt have a crystal structure.

Its not D because, concrete is not a mineral and has indefinite composition.

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