6) Which of the following resources have been used by humans to create energy at

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6) Which of the following resources have been used by humans to create energy at some point in our history? A) Whale Oil B) Wood C) Wind power D) Petroleum (Oil) E) All of the above 7) Energy is: A) The ability to work over time B) The ability to do work C) The electricity created in the solar cell by the sun D) Electricity on the power grid E) Force applied to an object over some distance 8) Match the description with the appropriate term. (Draw a line) I.Primary energy A. The process of changing one form of energy into forms IL.Secondary energy B. Energy contained in natural resources -Ill. Nonrenewable energy C. Energy sources that have been converted from other energy sources IV.Renewable energy D. Sources of energy that exist in limited quantities VEnergy conversion E. Sources of energy that are not depleted when used 9) For the last 100 years, the primary energy source in the US has been A) nuclear energy B) fossil fuels C) hydropower D) natural gas E) fuel wood 10) Fossil fuels are best described as a(n) A) renewable B) nonrenewable C) clean D) efficient E) environmentally friendly energy source.

Explanation / Answer

Answers

6. E) All of the above

7. B) Ability to do work

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