GPS devices were originally developed
A) for use by surveyors.
B) to create more accurate global maps.
C) as a navigational device for military uses.
D) to send information to satellites.
Answer: C
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a. improving fuel efficiency b. getting older, more polluting cars off the road c. using pollution-control devices d. using mass transit e. walking or biking
Water vapor (H2O) has a longer residence time in the atmosphere than carbon dioxide (CO2 )
Indicate whether the statement is true or false
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a. scattering of light by air molecules b. the bending of light by air of different densities c. a thin layer of moist air near the ground d. reflection of light from a hot surface e. refraction of light through ice crystals
Which of the following best matches the description?Process in which land is designated for a specific use.
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