All of the earth's ocean basins are ________
A) less than 20 million years old B) less than 2000 million years old
C) less than 2 million years old D) less than 200 million years old
D
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In an example of global interdependence among places and regions, which of the following is NOT an explanation for rising food prices across the globe?
A) increased interest in local foods in the USA B) increased consumption of meat C) increased price of energy D) booming economies of China and India E) increased use of grain for biofuels
During the Jurassic and Cretaceous, the Appalachian range was eroded into a low-lying erosional surface
a. True b. False
As a stream changes from its headwaters to its mouth, which of the following is not likely to occur?
A) The channel gets smoother. B) The volume of water increases. C) The channel gets wider downstream. D) Sediment size gets smaller downstream. E) Flow velocity decreases.
What molecule loses a proton to form the hydroxide ion, OH??
A. the oxygen molecule, O2 B. the hydrogen molecule, H2 C. the hydrogen peroxide molecule, H2O2 D. the water molecule, H2O