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erik [133]
3 years ago
7

How me and other scientists know about animals that went extinct for million people million of years ago

Chemistry
1 answer:
Natalija [7]3 years ago
6 0
The answer is fossils. they find and study them
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<span>if all of the color of the solution was gone, but there was still some zinc metal mixed in with the copper metal produced, then Zn is the excess reagent </span>

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