What phenomenon causes altitudinal zonation?
A) El Niño
B) demographic transition
C) Treaty of Tordesillas
D) environmental lapse rate
E) Iberian conquest
D) environmental lapse rate
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In which of these settings would a river or lake lose water to groundwater?
A) Where the water table adjacent to the river is higher than the river B) Where a lake is directly underlain by an impermeable layer C) Where a river flows across an area where the water table is far beneath the surface D) None of these are correct.
This map shows contours of the water table and the location of a factory that contaminated groundwater. Which way will the contamination flow?
A. northwest, up the contours B. southeast, down the contours C. southwest, parallel to the contours D. no direction because the movement of contamination is independent of groundwater
____ are transitional environments because they ____
a. Sand dunes; involve marine and continental processes b. Barrier islands; involve marine and continental processes c. Submarine fans; involve marine and continental processes d. Glaciers; straddle the boundary between the mountains and the plains e. Alluvial fans; straddle the boundary between the mountains and the plains
Organisms are composed of many elements. Which is the least abundant of these?
A)oxygen B)nitrogen C)calcium D)carbon E)hydrogen