A lightbulb with a resistance of 95 ohms and labeled "150 W" is designed to be used in a
A. 120-V circuit.
B. 240-V circuit.
C. either
D. not enough information
Answer: A
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What is biogeography? It is a branch of
A) physical geography that explores the biosphere and the Earth systems that support it. B) biology that studies how animals adapts to their physical surrounding. C) geology that concentrates how the lithosphere has shaped the biosphere.
Geomorphic processes such as faulting that operate within the solid Earth are known as ________; processes like stream erosion that shape Earth from above are known as ________
Fill in the blank(s) with the appropriate word(s).
Biofuels are ________
A) batteries that fuel automobiles and buses B) batteries that derive energy from plant material C) devices that directly convert fuel to electrical currents D) fuels that use electrical currents to power automobiles E) fuels that are derived from plant material
Which of the numbered units is the oldest?
A. unit 8 B. unit 10 C. unit 6 D. unit 4 E. unit 9