As the Sun angle ________, the amount of energy reaching the surface ________.
A) increases; increases
B) increases; decreases
C) increases or decreases; remains constant
A) increases; increases
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Principal atmospheric lifting mechanism(s):
Which parcel of air has the lowest pressure?
A) warm moist air B) warm dry air C) cold moist air D) cold dry air
Why might logging of a drainage basin change the slope of the river?
A) The base level of the stream is altered by the increased sediment load. B) The stream must steepen to accommodate the increased runoff. C) Increased sediment load causes the river to steepen its gradient to transport more sediment. D) Decreased erosion shuts off sediment supply, causing the river to erode.
The second law of thermodynamics states that __________.
A) all of the food energy eaten by an organism can be used by that organism B) in any transformation, some of the original energy is converted to heat or light and the system becomes more disordered C)the total energy in the universe is increasing with time D) the energy in the universe is constant