Pumping ancient groundwater faster than it can be replenished:
a. is impossible.
b. forms aquicludes.
c. increases porosity in the intermediate zone.
d. is called water mining.
e. is not a problem because of the enormous reserves of ancient groundwater.
D
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Which exotic animal, introduced in Australia, reached plague proportions, and was finally brought under control only after the purposeful introduction of a disease that affected only this particular introduced species?
A) rabbits B) camels C) wallabies D) goats E) dogs
Investment in improved transportation and communication systems is usually done with the intent to
A) increase economic growth. B) increase tax revenues. C) increase transportation costs. D) increase regional divides.
Where do ultramafic rocks form?
A) At convergent boundaries B) In volcanoes C) At the Earth's surface D) At the upper mantle
Cobenefits of reducing greenhouse gas emissions include all of the following except
A) improved human health. B) improved air quality. C) increased renewable and sustainable energy development. D) fewer oil tanker spills. E) greater dependence on imported oil.