In the United States, tornadoes are most frequent during the ____, and least frequent during the ____
a. summer; fall
b. spring; winter
c. spring; fall
d. summer; winter
e. winter; fall
ANSWER: b
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An organism's range of tolerance is best described as ________
A) the range of precipitation that falls on a given area B) the span between the minimum and maximum temperatures in which an organism flourishes C) the difference between the amount of sunlight tolerated and the amount of sunlight available D) the difference between the amount of food available and its consumption of that food E) the total amount of pollutants experienced by an organism
Siberian Express is the term used when:
A) an mP air mass from the north Atlantic enters New England and generates snowfall. B) an unusually cold air mass enters the Rocky Mountains. C) a modified air mass originating in Siberia reaches the Pacific Northwest. D) an outbreak of bitterly cold air from Canada intrudes over a large part of the United States.
The most common reason that dew forms is ________
A) plants give up water to the atmosphere when the temperature decreases B) fast heating of the atmosphere when the sun first comes up in the morning C) a rapid increase in water vapor in the air during the night D) radiant cooling of the ground and adjacent air in the evening
Segregation is involuntary congregation
Indicate whether this statement is true or false.