The asthenosphere lies in the:
a. inner and outer core
b. mantle and crust
c. crust only
d. mantle only
d
Environmental & Atmospheric Sciences
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Gymnosperms represent the earliest flowering plants
a. True b. False
Environmental & Atmospheric Sciences
Which of the following is NOT a typical environment in which a sedimentary rock forms?
A. shoreline of a lake B. heating next to a magma C. deep seafloor D. beside glaciers E. river channels
Environmental & Atmospheric Sciences
Which of these is the most important cause of the increase in atmospheric CO2?
A) decaying vegetation B) deforestation C) cattle D) wetlands and swamps E) burning of coal and petroleum
Environmental & Atmospheric Sciences
Most caverns are created when rock is eroded:
a. just below the water table. b. in the intermediate zone. c. in the zone of aeration. d. in an aquiclude. e. by infiltration.
Environmental & Atmospheric Sciences