A lake that is described as oligotrophic is typically
a. low in primary productivity
b. low in plant nutrients
c. high in plant nutrients
d. both low in primary productivity and low in plant nutrients
e. both low in primary productivity and high in plant nutrients
D
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A ball is thrown vertically into the air. Because of air resistance, its time coming down compared to its time going up is
A) less. B) the same. C) more.
What geologic event is probably indicated by this irregular coast, with estuaries?
A) A rise in sea level
B) A drop in sea level
C) Erosion due to large tsunamis
D) The uplift of submarine canyons
The ideological subsystem of a culture is known as its ________.
A. artifacts B. justdafacts C. sociofacts D. mentifacts E. all of these
The ____ climate classification is a system that concentrates on a local scale, and is most useful for water resources specialists, soil scientists, and agriculturalists
a. Köppen b. Fujita c. Penman d. Darcy e. Thornthwaite