According to Newton's Laws, an air parcel can accelerate:
A) by speeding up.
B) by slowing down.
C) by changing direction.
D) all of the above
Answer: D
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What was the cause of the 2,500 deaths that occurred near Vaiont Dam, Italy, in 1963?
a. burial by rock debris b. water flooding due to the breaking of the dam c. water flooding due to overflow of the dam d. burial by a mudflow e. the town sliding into the reservoir
What percent of electricity in the United States is generated by nuclear power plants?
A. 19% B. 49% C. 69% D. 9%
What did the differing paleomagnetic records for each continent show?
a. each continent had its own magnetic pole during successive geological periods b. that the magnetic poles for each continent had moved over geological time c. that the magnetic poles have remained in one location and each of the continents has moved d. that both the poles and the continents have moved over time e. none of these
Describe the distinction between a primary pollutant and a secondary pollutant. Give an example of a primary pollutant and an example of a secondary pollutant. Explain the source(s) and effect(s) of each of these pollutants, and describe recent U.S
trends in atmospheric concentrations of each.