Cars use ________ to reduce nitrogen oxide emissions.
A. Electrostatic precipitators
B. Afterburners
C. Catalytic converters
D. Bag filters
E. Fluidized bed combustion
Answer: C
Environmental & Atmospheric Sciences
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Which of the following statistics is appropriate for use with categorical data?
A. Median B. Majority C. Sum D. Mean
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The most common component of the atmosphere is
A. particulates. B. aerosols. C. carbon dioxide. D. nitrogen.
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Which climate type primarily borders arid lands (deserts)?
a. semiarid b. humid subtropical c. highland d. humid continental, warm summer e. None of these climate types primarily borders arid lands.
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Which chemical comprises 78% of our atmosphere by mass and is contained in proteins, DNA, and RNA?
a. Carbon b. Nitrogen c. Water d. Phosphorus
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