Air masses are grouped into five general categories according to their ____________________
Fill in the blank with correct word.
ANSWER: source region?
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Which of the following factors does NOT influence the amount of ground shaking caused by earthquakes?
A) the earthquake's intensity B) proximity to epicenter C) unstable ground D) time of day
Because of their high metabolism, small mammals retain heat more effectively than large mammals
a. True b. False
As the Ojibwa people of Grassy Narrows found out, the symptoms of methyl mercury poisoning mimic the effects of:
a) alcohol abuse. b) cocaine addiction. c) hyperactivity. d) none of the above.
One of the greatest weather disasters in U.S. history occurred during the ________ , when several years of drought turned grain-growing areas in the center of the nation into the "Dust Bowl."
A. 1950s B. 1960s C. 1920s D. 1930s E. 1940s