It is false that the continent’s coasts and lakes were fished intensively with new technologies such as the characteristic Mesolithic stone blades and microliths used as fishhooks and in harpoons.
While it was true that the stone age humans used stone blades and harpoons, it is not true that the coasts were fished intensively as that would imply that humans relied on fish a lot at the time.
Humans rather relied on hunting more so the fishing was not very intensive.
Other options are wrong because:
In conclusion, the continent's coasts and lakes were not fished intensively.
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