Which of the following is the most common gas in Earth's atmosphere?
a. Nitrogen
b. Water vapor
c. Carbon Dioxide
d. Ozone
Answer: a. Nitrogen
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Beneath which part of the United States is its largest aquifer, the Ogallala Aquifer, located?
A) the Great Plains
B) the Gulf Coast
C) the Pacific Northwest
D) the West Coast
E) New England
On a worldwide basis, which of the following uses the least water?
A. agriculture B. domestic uses (drinking, cooking, toilets, etc.) C. hydroelectric power plants D. industry
The Basin and Range Province is the site of crustal uplift and thinning
a. True b. False
Nekton are restricted to particular ocean areas by ________
A) availability of food B) differences in water pressure with depth C) changes in salinity D) temperature variations with latitude and depth E) All of the above conditions may restrict the distribution of nekton.