Which of the following statements describes why someone is generally safe inside a car during a lighting storm?
A. The metal car body carries the lightning current around the passengers inside.
B. The metal car body does not become electrically charged.
C. The car's radio antenna acts as a lightning rod.
D. The rubber tires provide insulation from the ground.
Answer: A
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The difference between active and passive remote sensing systems is that
A) active systems involve the latest generation of satellites while passive systems use signals from older satellites. B) active systems include aerial photography while passive systems rely on satellite imagery. C) active systems can operate throughout cloud or fog cover while passive systems require clear sky conditions. D) active systems emit their own energy while passive systems simply detect existing energy signals.
Oceanic ridges are geologically stable features where only pelagic sedimentation takes
place. Indicate whether the statement is true or false.
What characteristics of the Intermontane have made it a land of discontinuous settlement?
A) A rugged landscape and low average precipitation. B) Lack of natural resources such as minerals and lumber. C) Conflict with native groups living in the area left few safe areas. D) Many settlers bypassed the area for choice land in California.
Which country had the world's longest life expectancy in 2012?
A. U.S. B. Sweden C. Germany D. Japan E. Denmark