A system of pipes painted black that have water circulating on the wall in a glass greenhouse on the south side of a building is an example of
A) Parabolic collection
B) An active solar heating system
C) Passive heat absorption
D) Cogeneration
E) Charging fuel cells to increase efficiency in energy use
Correct Answer:
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Q29: Since the 1920s, hydropower production has
A) Risen,
Q30: In the United States, windmills played a
Q31: Burning methane from dung
A) Is more efficient
Q32: Jatropha is a good source for biodiesel
Q33: Which of the following is true regarding
Q35: A(n) _ is used to remove hydrogen
Q36: Which of the following is NOT a
Q37: _ is being used to produce ethanol
Q38: Which of the following is NOT normally
Q39: Very few living trees are cut down
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