22) Which energy source has the highest net energy ratio? a) Natural gas b) Hydr

Question

22) Which energy source has the highest net energy ratio? a) Natural gas b) Hydropower c) Wind d) Oil e) Nuclear 23) What energy source provides the greatest share of electricity in the United States? a) Oil b) Natural gas c) Hydropower d) Coal e Wind 24) Which one of the following statements best describes global energy demand in the next few decades? a) Energy demand will decrease due to declining demand in developed countries b) Energy demand will level off in both developing and developed countries c) Energy demand will increase, with most of the growth in developing countries d) Energy demand will increase, with most of the increase in developed countries c) Energy demand will increase, with the increase occurring equally in developed and developing countries 25) Solar, wind and other renewable energy sources currently supply what percent of U.S. energy consumption? a) Over 30% b) About 30% c) About 20% d) About 10% e) Less than 10% 26) What statement best describes the price of oil over the last several decades? Oil prices have fluctuated significantly b) Oil prices have remained relatively constant a) Oil prices have been steadily decreasing e) c) Oil price have been steadily increasing d) Oil prices have been set by OPEC 27) A Hubbert curve shows... a) The price of a resource over time b) The distribution of a resource in the earth's crust c) The extraction cost of a resource over time d) The production of a resource over time e) The reserves of a resource over time

Explanation / Answer

22. Option D, oil

This is because oil is easily accessible. It is the difference of the total amount of energy available from the resource and energy needed to find that resource. Nuclear power has the least.

23. Option B, natral gas.

It constitutes around 34% of the total energy generation followed by coal as per data 2016.

24. Option C, growth in developing countries.

Energy plays a very vital role in the growth of a nation. With many developing countries rapidly expanding their growth paths, the demand for energy would increase in the few decades.

25. Option D.

The supply is increasing at a slow pace because these energy sources are quite expensive to build. Infrasturture requires a huge capital.

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