Lakes in the midwestern United States that have experienced sustained acid precipitation over many years have gradually
A) increased their pH because of the buffering effects of limestone.
B) increased their pH because of the depletion of the buffering effects of limestone.
C) decreased their pH because of the buffering effects of aluminum.
D) decreased their pH because of the depletion of the buffering effects of limestone.
D
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The significance of any great circle is that it always
A) connects two points on the surface of a sphere with the shortest distance. B) follows the same line of latitude. C) passes through the point where the equator intersects with the Prime Meridian. D) passes through the North or South Pole.
Indigenous Canadians and Americans grouped by ethnic identity include all but which group?
A) Alaska Native B) Native Hawaiian C) First Nations D) Plains Native E) Inuits
Banking involves the exchange of money between savers and borrowers, as well as the exchange of assets from borrowers to savers
Indicate whether the statement is true or false
According to the figure, the basis for government policy regarding environmental issues ________.
a. comes primarily from the private sector b. comes only from the natural and social sciences and is acted upon without bias c. is primarily driven by lobbying d. comes from both the public and the private sectors e. comes from the sciences, with additional input from the public and private sectors