21. Which of the following would affect how well the solar panels work to produc

Question

21. Which of the following would affect how well the solar panels work to produce electricity? (a) Cold temperature; (b) Dense clouds; (c) Severe drought; (d) Strong winds Convection currents can be caused by: 22. (a) Weather patterns (b) Unequal heating of the earth's surface (c) Thermal expansion (d) (b) and (c) but not (a) (e) (a) and (b) and (c) Which of the following is least likely to be considered an alternative energy source? 23. (a) Biomass; (b) Geothermal power; (c) Fuel cells; (d) Wind power; (e) Diesel generator. 24. Which of the following are advantages to using renewable energy resources? Check all that apply: (a) Unlimited supplies; (b) Decrease in foreign resource dependence; (c) Cost of installation; (d) Decrease is wildlife niches; (e) Decrease in usable land area; (f) Cost of materials needed; (g) Decrease in greenhouse gas emissions.

Explanation / Answer

21. b) Dense clouds

22. d) b and c but not a

23. c) Fuel cells

24. b) Decrease in foreign resource dependence

d) Decrease in wildlife niches

f) Cost of materials needed

g) Decrease in greenhouse gas emissions

d f g

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