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Why is marijuana more potent today as compared with marijuana in the 60's and 70's

User Jmleroux
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2 Answers

2 votes
Also because it's a little more legal now and now we are using it for medical reasons now.
User StevenOjo
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5 votes
Because we keep finding new ways to breed the plant
also we now know how to make "hybrids"
User Ncomputers
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