Seawater that exceeds the 3.5% average is termed
A) mesohaline. B) brine. C) freshwater. D) brackish.
B
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The geologic time scale was originally based upon
a. changes in the Earth’s biota. b. the theory of organic evolution. c. the isotopes of minerals. d. absolute ages of rocks based on radiometric age dates. e. geographic mineral locations
Earthquakes are most likely to occur near
A) continental shields.
B) areas of volcanic activity in the interior of continents.
C) areas where two tectonic plates meet.
D) heavily populated areas.
Among Bangkok's environmental problems are saltwater intrusion in the water table and:
A) nuclear radiation B) subsidence C) destruction of song birds by foreign-introduced rats D) acid rain
When surface cyclones form, they almost invariably occur just ahead of an upper air ridge
Indicate whether the statement is true or false