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kykrilka [37]
3 years ago
11

Naturally occurring solid mixture of one or more minerals and organic matter

Chemistry
1 answer:
kkurt [141]3 years ago
4 0

Answer:

A rock is a naturally occurring solid mixture of one or more minerals or organic matter.

Explanation:

A mineral is naturally formed, inorganic, solid, with a fixed chemical composition, and crystalline structure. A rock at the surface of the Earth would need to be weathered down into sediments.

<u>HOPE THIS WILL GIVE YOU SOME IDEAS !!!!!</u>

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Answer:

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Explanation:

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For two two samples the formula of test statistics is

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s is standard deviation.

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Variance is the square of standard deviation.

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