A lake or area of the ocean with a large supply of nutrients is referred to as
A. mesotrophic.
B. hypereutrophic.
C. eutrophic.
D. estuarine.
E. oligotrophic.
Answer: C
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Rossby waves
A) have troughs that develop behind surface cold fronts. B) can have up to three troughs for every ridge, and vice versa. C) have little effect on divergence aloft. D) have little effect on surface pressure.
What type of cleavage would be exhibited by a mineral that has this arrangement of silicon tetrahedron? 
A. one direction of cleavage B. the mineral fractures instead of cleaves C. two nonperpendicular directions of cleavage D. two perpendicular directions of cleavage
Vegetation decreases runoff by
A) reflecting only the green portion of sunlight B) absorbing water into leaves C) intercepting rainfall and slowing its fall to the ground D) holding soil in place
What organism is used to treat municipal wastewater?
A. Freshwater fish B. Green algae C. Red algae D. Aerobic bacteria