The North American Great Lakes:
a. occupy kettles.
b. are large tarns.
c. are oxbow lakes.
d. occupy former river valleys deepened by glacial erosion.
e. occupy deflation hollows scoured out by the glacial wind.
D
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Which feeding group ingests sediment and extract nutrients from it?
A)herbivores B)sediment-deposit feeders C)carnivore-scavengers D)epifauna E)suspension feeders
Which one of the following would cause the greatest soil erosion on a forested hillside?
A) Removing the dead trees B) Cutting down and removing all of the trees C) Converting the hillside from forest to grass D) Planting new trees in the forest
Volatile organic compounds, a primary pollutant, are also called hydrocarbons
Indicate whether the statement is true or false
Soils that swell require particles with high:
a. porosity b. permeability c. organic matter content d. surface area