The dominant element in continental crust are
A) silica and aluminum.
B) silica and magnesium.
C) magnesium and aluminum.
D) potassium and iron.
A
Environmental & Atmospheric Sciences
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Tornadoes typically form with: a. strong vertical wind shear
b. a conditionally unstable environment. c. severe thunderstorms. d. All of these choices.
Environmental & Atmospheric Sciences
The oldest hominids belong to the genus Homo. Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
What type of slope failure is shown in this figure?
A. debris flow B. rock fall C. creep D. rock avalanche E. rotational slide
Environmental & Atmospheric Sciences
All of the following are criteria used by the U.S. Department of Transportation to determine if it is a hazardous material EXCEPT
A. any poisonous or toxic materials. B. any explosive materials. C. any gases. D. any flammable materials. E. any liquid materials.
Environmental & Atmospheric Sciences