Balance for a main sequence star is achieved when ________
A) temperature matches the rate of nuclear fusion
B) gas pressure matches temperature
C) nuclear fusion and fission occur at the same rate
D) gravitational collapse matches gas pressure
E) all of the above
D
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Suppose last night was clear and calm and tonight there will be low clouds. Which of the following can be predicted about tonight's minimum temperature?
A. It will be higher than last night's minimum temperature. B. It will be above freezing. C. It will be the same as last night's minimum temperature. D. It will be lower than last night's minimum temperature.
Alluvium is soil that is transported and deposited by water, whereas ________ is transported by wind
A) podzol B) laterite C) loess D) carbonate
A jet streak is a maximum in ________ within a jet stream
a. precipitation b. wind speed c. pressure d. temperature
Of the major fossil fuels used in the world today, which is going to last the longest? (There are at least 300 years left for this energy resource.)
A) coal B) natural gas C) oil D) All of the above are going to last at least 300 years. E) All of the above are likely to be exhausted in the next 20 years.