Which substance is the best transmitter of solar energy?
A) Rock
B) Soil
C) Air
D) Murky water
E) Rock, soil, air, and murky water
Answer: C
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Which of the following is true regarding fuel cell technology?
A. They are only about 40-45% efficient. B. They must receive a constant supply of water and oxygen. C. They must be recharged with an electrical current. D. They were first designed by NASA. E. A fuel cell stack providing all of the electricity for a typical home is not feasible because it would be too large.
Of the known species of Australopithecus, the oldest is A. anamensis. Indicate whether the statement is true or false
_______ organisms make their own nutrients. Fill in the blank(s) with the appropriate word(s)
The Atlanta BeltLine project seeks to
A) identify regions of sprawl within the city. B) take a brownfield area and retrofit it using principles of smart growth. C) try to bring social services to an area of urban blight D) construct new interstate highways to relieve some of the area's congestion.