Even when the temperature of a pan of water is below the boiling point, some water still evaporates. This is because
a. of convection
b. the kinetic energies of individual water molecules vary above and below the average value
c. the humidity always increases
d. none of the above
B
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Once an object strikes Earth's surface, it is called a "meteor"
a. True b. False Indicate whether the statement is true or false
Other than its atmosphere, name two properties of Venus that are unique among the terrestrial planets
What will be an ideal response?
Picnickers see a lightning flash of an approaching thunderstorm and hear the thunder 8.0 s later
a. Approximately how far away, in miles, is the storm? b. If the storm is moving at a speed of 10 mi/h and the picnickers take 20 minutes to finish eating and pack, will they get wet?
What is the significance of the Tully-Fisher relation?