题目内容

Which of the following statements are NOT applicable to wind power?

A. 21st century technology
B. land below turbines used for farming
C. cause of bird and bat deaths
D. zero emissions from turbines
E. disrupts ecosystem aesthetics

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Hydroelectric dams on a river typically results in I. displaced native speciesII. reduced agricultural landIII.improvement in downstream ecosystemsIV. reduction of recreational areas for people

A. I, II
B. III, IV
C. I, II, III
D. I, II, III, IV
E. I, IV

Which of the following renewable energy sources generates the most emissions?

A. solar photovoltaic cells
B. hydrogen fuel cells
C. wind energy
D. tital energy
E. solid biomass

Which of the following best described the amount of electricity used in the United States is harnessed from wind?

A. less than 10%
B. between 10% and 15%
C. between 15% and 20%
D. between 20% and 25%
E. more than 25%

Which source of energy is not ultimately solar based?

A. biomass
B. tides
C. wind
D. coal
E. hydroelectricity

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