Where does most of the material on the continental shelf come from?

A) Erosion from the adjacent continent
B) Sediments transported from rivers
C) Accumulations behind natural dams
D) New crust formation


A

Environmental & Atmospheric Sciences

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The rocks of continental shields often contain rich concentrations of metal ores

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

What marks the submerged limit of rapid marine erosion?

a. Sea cliffs b. Wave-cut platforms c. Sea caves d. Blowholes e. Berms

Environmental & Atmospheric Sciences

The Appalachian and Ouachita mountains represent ancient mobile belts

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Methods for desalinating sea water to produce fresh water include ________

A) reverse osmosis and distillation B) making sea water acid to transform salts to solids C) treating with activated charcoal and clay D) treating sea water with salt-consuming marine bacteria E) filtration and sedimentation

Environmental & Atmospheric Sciences