Which of the following is likely to strengthen a supercell thunderstorm?
A. tightening of updraft rotation in the mesocyclone
B. evaporational cooling associated with downdrafts cooling updrafts
C. dry line with air masses of similar moisture content
D. extensive blasts of thunder causing increased latent heat release
Answer: A
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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.
The amount of gravitational force that acts on the space shuttle while in orbit is
A) nearly zero. B) almost as much as the shuttle's weight on Earth's surface. C) the same as the shuttle's weight on Earth's surface.
What was the primary reason the southern sea otter nearly went extinct by the early 1900s?
A. They scared the tourists. B. They had thick, luxurious fur. C. They were ruining the kelp beds. D. They were eating all the shellfish. E. They raided valuable bird nests.
The relationship between the mass of water vapor in an air parcel and the mass of all air in the same parcel (including vapor) is called ____
a. specific humidity b. relative humidity c. absolute humidity d. dew point e. mixing ratio