What is the function of a catalytic converter?
A. It reduces carbon monoxide from vehicle exhaust.
B. It reduces volatile organic compounds from vehicle exhaust.
C. It reduces nitrogen monoxide from vehicle exhaust.
D. All options are correct.
Answer: D
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Which of the following terms is another name for a small, rotating whirlwind observed at the surface?
A. haboob B. rotor C. dust devil D. seiche
A parcel of air will rise as long as it is
A) denser than surrounding air. B) less dense than surrounding air. C) cooler than surrounding air. D) more humid than surrounding air.
Which one of the following concerning stalactites and stalagmites is not true?
a.) Stalagmites form on the floors of caves below the water table. b.) Stalactites are deposited from water dripping from the ceiling of an aerated cavern. c.) Both are composed of calcium carbonate. d.) Both are forms of dripstone; stalactites hang from the ceiling, stalagmites grow upward from the cavern floor.
Which of the following pairs of processes are most similar?
A) Precipitation and infiltration B) Evaporation and percolation C) Percolation and infiltration D) Transpiration and precipitation