Manure or dung makes a good fuel except that it is
A) Scarce
B) Not clean
C) Needed to rebuild the soil
D) Difficult to burn
E) Commonly full of pathogens
Correct Answer:
Verified
Q16: The reformer in a fuel cell system
A)
Q17: Wood and charcoal burning is still the
Q18: In favorable locations, wind power is cheaper
Q19: Home appliances in standby mode can account
Q20: The idea of cogeneration is to actively
Q22: Active solar energy systems involve
A) Large volumes
Q23: Amorphous silicon collectors are currently being used
Q24: Where does wind energy have the greatest
Q25: Photovoltaic cells work because solar energy striking
Q26: Photovoltaic electricity costs are _ coal or
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