You a generally safe inside an automobile during a lighting storm because:a
the car's radio antenna will act as a lightning rod
b. the rubber tires insulate you from the ground
c. metal cars do not become electrically charged
d. the metal car body will carry the lightning current around the passengers inside
d
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Ice has a lower density than water because ice
A. molecules are more compact in the solid state. B. is composed of open-structured crystals. C. sinks. D. molecules vibrate at lower rates than water molecules.
When temperature decreases but actual water vapor content remains the same, what happens to relative humidity?
A) Relative humidity decreases as well B) Relative humidity increases C) Relative humidity disappears D) Relative humidity decreases for a while, then increases suddenly E) It is difficult to tell without knowing the actual humidity content
If an area is underlain by limestone soils, acid rain tends to be neutralized
Indicate whether the statement is true or false
In West Africa, French is a language that is used throughout a wide area for commercial or political purposes by people with different native tongues. French is an example of a(n):
A) culture hearth B) ethnic language C) universalizing language D) lingua franca