What do mountain belts such as the Caledonian and Appalachian Mountains suggest to scientists?
A) By uniformitarian principles, the tectonic plates may have been in different positions in the past.
B) The theory of tectonic plate action is not sufficient to explain all mountain building.
C) The continental lithosphere is more rigid than the oceanic lithosphere.
D) By evaluation of the deformations, the asthenosphere is more rigid than the lithosphere.
Answer: A
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Which of the following features is associated with the global distribution of precipitation?
A. distribution of mountain ranges and high plateaus B. longitude C. albedo of the land surface D. deep water ocean circulation
Worldwide, the largest percentage of freshwater readily available to humans is stored in _______.
Fill in the blank(s) with the appropriate word(s)
Why does a jacket keep you warm on a windy day?
A) Wind is the flow of cold air so the jacket prevents cold air from reaching the body. B) The jacket prevents water vapor from getting near your body and absorbing body heat. C) The jacket acts like a florist's greenhouse, trapping long-wavelength radiation near your body. D) The jacket prevents the wind from blowing away the layer of air that has been warmed by your body.
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