________ use mirrors to concentrate the sun's rays on a series of pipes, which heats fluid inside the pipes to boiling, producing steam. The steam is then used to spin a turbine and generate electricity
A) Passive solar technologies
B) Photovoltaic cells
C) Solar photovoltaic farms
D) Biofuels
E) Concentrating solar power systems
Answer: E
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Which of the following best describes the solute effect?
A. Cloud droplets evaporate and ice crystals grow in a cold cloud. B. Pollutants are removed from the atmosphere by cloud droplets. C. Water droplets are kept from freezing at temperatures below 0°C. D. Dissolution of hygroscopic nuclei occurs as does condensation at relative humidities less than 100 percent.
Wind power is expected to grow
A. offshore because of stronger and steadier wind speeds. B. on land because of stronger and steadier wind speeds. C. in the United States due to increasing wind speeds from climate change. D. offshore because coastal residents enjoy the appearance of them. E. on land because there is low noise.
In a multicell storm, at which stage of development does each new cell start?
A. end B. cumulus C. dissipating D. mature
Which of the following elements is found in all three of the nerve gases parathion, sarin and soman?
A) chlorine B) nitrogen C) phosphorous D) sulfur