Generators are necessary because _____.

A. electricity is a secondary energy source
B. they step down voltage so electricity can enter homes and businesses
C. fuel cells are not practical
D. they convert chemical energy to electrical energy

Question

Generators are necessary because _____.

A. electricity is a secondary energy source
B. they step down voltage so electricity can enter homes and businesses
C. fuel cells are not practical
D. they convert chemical energy to electrical energy

nottim · Answer

wat you think?

anonymous · Answer

i think D is the answer

unklerhaukus · Answer

batteries aren't always practical

anonymous · Answer

http://www.wolframalpha.com/input/?i=Generators+are+necessary+because+_

anonymous · Answer

Yes I would say D, but C is also true.  A is only true if you ignore static, lightning, magnets  and piezoelectric. B is just silly as the voltage is high during transport to lessen the loss due to heating wires.

unklerhaukus · Answer

D is true but its not a reason why Generators are necessary

anonymous · Answer

see here http://answers.yahoo.com/question/index?qid=20120730213052AAlz8cR