Which of the following business activities represents a service-flow business?
A. farming
B. leasing and servicing copy machines
C. selling gasoline
D. extracting natural gas
E. selling electric bicycles
Answer: B
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A. smelting iron ore B. producing electricity C. fueling a steam engine boat D. heating your house
Hydrogen sulfide, H2S, burns in the presence of oxygen, O2, to produce water, H2O, and sulfur dioxide, SO2. Through this reaction, is sulfur oxidized or reduced? 2 H2S + 3 O2 ? 2 H2O + 2 SO2
A. Sulfur is oxidized. B. Sulfur is both oxidized and reduced. C. Sulfur is reduced. D. Sulfur is neither oxidized nor reduced.
How do air masses form? What are their general characteristics?
What will be an ideal response?
Discuss the facets of sustainable mineral use
What will be an ideal response?