The original large continental mass containing all of the present continents prior to separation millions of years ago has been named ________
A) Laurasia
B) Gondwanaland
C) Pangaea
D) North America
E) Eurasia
Answer: C
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What kind of fault indicates that crust has been pulled apart?
A) normal B) reverse C) strike-slip D) all of the above
The Hubbert peak accurately predicted
A) maximum U.S. oil consumption in 1972. B) maximum U.S. oil consumption continuing to climb through today. C) maximum U.S. oil production about 1970. D) maximum U.S. oil production about 1995.
A midlatitude anticyclone ________
A) is more than one air mass B) exhibits instability C) has a front in its center D) is associated with fast winds E) is associated with sunny, dry weather
As oceans become more acidic, the shells of tiny sea snails tend to dissolve. This is a concern because:
a. The snail shells provide material for jewelry making on south sea islands. b. The shells are ground up and used for fertilizer for agricultural crops. c. The snails are the base of a food web that supports entire polar ecosystems. d. More than one of these are correct. e. None of these answers.