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Agata [3.3K]
3 years ago
8

3. When (what year) were stone tools first used?

Biology
1 answer:
Dima020 [189]3 years ago
4 0
Stone tools we’re first used around 3,300 BCE
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Hydrophilic means "water-loving," which means that hydrophilic molecules readily associate with polar molecules such as water.
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