The North American realm extends from the polar regions of northern Canada and Alaska all the way south through Mexico and the countries of Central America.
a. true
b. false
b. false
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In a region of eastern Washington State known as the Palouse, farmers grow wheat on steep, sloped hills. Which of the following agricultural practices might be of greatest benefit in this region?
A) Use of shelterbelts B) Contour strip farming C) Irrigation D) Repeated plowing
Which ranges for incoming light and UV radiation would be absorbed and scattered the most?
A) 0.2?0.3 microns B) 0.3?0.4 microns C) 0.4?0.5 microns D) 0.5?0.7 microns
Air masses are classified according to the ________ and ________ characteristics of their source regions
Fill in the blank(s) with the appropriate word(s).
In general, the higher the vertical wind shear, the more severe the thunderstorm
Indicate whether the statement is true or false