That´s an interesting question that has
actually be tested a number of times! The major
things plants require to grow are light,
nutrients (usually the get nutrients through
soil), water, and carbon dioxide (the gas that
is released when organisms breathe and part of
what is release through fossil fuel burning -
like from driving cars). Plants may seem to
grow better when you play music for them, but
that is likely a side effect of being better
tended because people might notice more often
when they need to be watered, fertilized, and
generally taken care of more often.
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