Of the elements in Earth's crusts, ________ makes up the most of Earth's crust by weight

A) oxygen (O) B) silicon (Si) C) Aluminum (Al) D) Iron (Fe)


A

Environmental & Atmospheric Sciences

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The pattern of immigration to the United States over two centuries shows that

A. Europe have always been the primarily source region for immigrants. B. No immigrant population yet equals the number of slaves brought from Africa in the 18th and 19th centuries. C. at different times, immigrants tended to come from one region more than others. D. wars overseas have not affected the patterns of immigration.

Environmental & Atmospheric Sciences

A warm rain falling through a layer of cold, moist air can produce ____ fog

A) radiation B) frontal C) advection D) upslope

Environmental & Atmospheric Sciences

A(n) ________ is any set of ordered, interrelated components and their attributes

A) system B) feedback loop C) equilibrium D) threshold E) tipping point

Environmental & Atmospheric Sciences

Which cloud type can indicate an oncoming storm, especially if they thicken and lower in elevation?

A) Fog B) Cirrus C) Stratocumulus D) Cumulus

Environmental & Atmospheric Sciences