Consider temperatures that are below freezing. Which of the following describes the temperature to which air must be cooled for a phase change to occur?
A. frost point
B. dew point
C. wet bulb
D. heat index
Answer: A
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The doubling time of a population is inversely proportional to its total fertility rate
Indicate whether this statement is true or false.
Which of the following terms relates to a wet-looking road surface on a clear, hot, dry day?
A. inferior mirage B. superior mirage C. diffraction D. scintillation
Central place theory explains the distribution of services and why a regular pattern of settlements exist, at least in developed countries such as the United States
Indicate whether the statement is true or false.
What best explains why producing electricity via geothermal energy is restricted geographically?
A. due to high infrastructure costs, geothermal areas are restricted to developed nations. B. due to the need for water, geothermal areas must be near a body of water. C. most geothermal areas are far from the electrical grid. D. areas where shallow crustal rocks are sufficiently hot are relatively rare. E. most geothermal areas are far from the nearest population center.