Both pyrolysis and gasification are ways of producing ________ from ________
A) pesticides and fertilizers; biomass
B) biodiesel; limestone
C) electricity; coal
D) hydroelectric fuel; coal
E) electricity; biomass
Answer: E
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As of 2011, the nation leading in generating wind-power is ________
A) China B) the United States C) Germany D) Canada E) India
Standard sea level atmospheric pressure in the U.S. is approximately 29.92 inches of mercury
Indicate whether the statement is true or false
Why are inlets through barrier bars or barrier islands not closed by longshore drift of sand?
a. Such inlets are always the outlets for onshore rivers to reach the sea, so they flush the sand out. b. Rapid flow of water back and forth through the inlet as tides rise and fall keeps it clear. c. Longshore sand drifted into such inlets drops into deeper water, so it drifts out to sea. d. Sand drifted into such inlets encounters brackish water from the inlet and dissolves. e. Sand drifted into such inlets is carried into the lagoon by incoming waves.
Which of the following are the major factors that determine a population's growth rate?
A) survivorship, natural selection, mutation, extinction B) birth rate, death rate, emigration, immigration C) limiting factors, carrying capacity, mutation rate, inbreeding D) adaptation, competition, birth rate, emigration E) immigration, climate, emigration, biotic potential