Which of the following is a renewable source of energy?
A. gasoline
B. wind
C. natural gas
D. coal
I am not fully understanding these sources and energy thing...
2 answers
I think is B.
Technically, doubters can make a case for all of them being renewable; however, gasoline, natural gas and coal take a very long time (say a million years) so for all practical purposes those are not renewable, certainly not in our life time. Wind is the one that here from day to day (and we assume for tomorrow also).