Relative to radio waves, the velocity of visible light waves in a vacuum is
A) less.
B) more.
C) the same.
C
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High-pitched sound has a high
A) speed. B) frequency. C) number of partial tones. D) all of the above E) none of the above
Mountains tend to:
A) produce effects similar to marine climates. B) produce more continental climates for locations downwind of them. C) moderate seasonal temperatures. D) enhance the effects of nearby oceans for locations that are downwind of them.
About how long was California a part of Mexico before it became a U.S. state?
A) 25 years B) 50 years C) 100 years D) 200 years
If the ozone in the atmosphere were to be destroyed, which of the following effects would you most expect to occur?
a. The thermal structure of the atmosphere would remain the same. b. More shortwave radiation would penetrate the atmosphere. c. There would be a decrease in the receipt of ultraviolet radiation at the surface. d. More longwave radiation would penetrate the atmosphere.