Which of the following is a renewable energy source?

A.Coal
B.Natural gas
C.Petroleum
D.None of the above
2.Which of the following is the most abundant fossil fuel in the world?

A.Coal
B.Petroleum
C.Crude oil
D.Uranium

3.Nuclear fission is a nonrenewable energy source because __________.

A.it can be repeated infinitely in the future without recourse
B.the process requires the use of a limited resource, uranium
C.Both a and b
D.the world will never run out of uranium