4 posts Page 1 of 1
a. geothermal
b. hydroelectric energy
c. biomass
d. all of the above.
d-all of the above
d - all of the above

EDIT - good eye Scott! (except I suppose you could turn a turbine with an electric motor powered by hydroelectric energy...)
Only a and c are correct. Answer b is wrong because you would not use electrical energy from a hydroelectric source to turn a turbine to generate electrical energy. You already have the electrical energy from turbines at the dam. A revision of b that would be correct is potential energy of water behind a dam.
4 posts Page 1 of 1

Who is online

Users browsing this forum: No registered users and 2 guests