Use the following information to answer the next two questions Sources of Energy 1. Biomass 2. Coal 3. Moving water 4. Natural gas 5. Nuclear isotopes 6. Ocean tides 7. Wind 15. The four renewable sources of energy listed above in order, are __ __ __ and __ (Record your four-digit answer in the numerical-response section on the answer sheet.) 16. Two energy sources listed above that depend on the force of gravity are numbered __ D. 3 and 6 A. 1 and 3 B. 2 and 4 C. 5 and 7 __