3 years ago

Which geologic time did humans exist

Chemistry

2 answers:

umka2103 [35]3 years ago

4 0

Answer:

Explanation:

because its says mesozoic era

Phantasy [73]3 years ago

3 0

Humans exist in the mesozoic era

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A substance containing atoms of different elements that are bonded together is called a(n):

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The answer is option C.

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2. Different samples of the substance appeared to have different proportions of the components.

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In this case, considering the given chemical reaction:

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38 points!! >:D

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