ENV 101-Exam 3 (reference: Energy-Ch. 13) 1. Which of the following are consider
ID: 293800 • Letter: E
Question
ENV 101-Exam 3 (reference: Energy-Ch. 13) 1. Which of the following are considered renewable sources of energy? a. biomass. b. coal c. geothermal d. hydrogen gas e. hydropower f natural gas g nuclear energy h. oil (petroleum) i. solar j wind 2. "Nonrenewable" refers to resources that are never re-formed. b. false (it refers to resources that are formed much more slowly than at the rate at 3. Which of the sources of energy listed in question 1 (a-j) are fossil fuels? 4. Most transportation currently depends on which one of the sources of energy listed which they are used) above? 5. Referring to your textbook or other current sources, which two of the above currently generates most of the electricity used in the U.S.? 6. The term "hydropower"' refers to a. direct combustion of hydrogen gas b. conversion of hydrogen gas to liquid fuels c. fusion of hydrogen atoms to provide additional nuclear power d. use of falling water to drive electric turbines e. any source of energy used to pump water 7. It is probably not feasible to meet all of our electricity needs using renewable sources of energy. Indicate the limitations of each type of renewable energy (selected from question 1) in meeting our current power needs:Explanation / Answer
1. Renewable sources of energy are those energy sources which donot pollute the environment and which can get replenished always. The renewable sources of energy from the list are : biomass, geothermal, hydrogen gas, hydropower, solar energy and wind energy.
2. True. Non renewable resources are those which cannot be replenished. Once they get finished,they cant be renewed.
3. Fossil fuels are formed from the decomposition of organic matter, From the list above, the fossil fuels are coal, natural gas and oil(petroleum).
4.Most of the transportation depends on majorly petroleum. It is the main source of energy used for transportation. It provides about 92% of the energy required for the purpose of transportation.
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