Which of these are renewable energy resources?

A

AEMA

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food
oil
coal
waves
biomass
wind
natural gas


b) each of the energy resources listed above can have its energy traced back to one source. What is the mysterious "one source"?
 
Natural gas is renewable since it can come from, um, poop. Natural gas (methane) is what my cars run on, so that's why I'm commenting on that one. It's a great renewable source of energy in my book, mostly because it only costs me 93 cents per gallon to fill up, and it's a much cleaner fuel than gasoline. As for b), I don't know, the sun?
 
i don't know if food would be regarded as a renewable energy source but I do know that waves, biomass and wind are.

b) my first thought would be the Sun but waves are mostly caused by the moon. then again food, oil, coal, biomass and natural gas all originated from life soo... my suggestion would be to read the book.
 
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