Question

Which of the following alternative energy sources is NOT inexhaustible?

Answer 1

Your best answers my friend would be C D D

C= geothermal

D= All of the above

D= The expense of large tracts of land in populated areas

Answer 2

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be "coal", since this is a fossil fuel that is limited in quantity on the Earth.