The removal of soil components from the topsoil is called illuviation and their deposition in the subsoil is termed eluviation
a. True
b. False
Indicate whether the statement is true or false
False
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Collectively, the shield and platform of a continent are known as a ________. Fill in the blank(s) with the appropriate word(s)
Which factor must increase in order for a river to pick up larger particles?
A) velocity B) viscosity C) shear stress D) water depth
Which of the following is CORRECT of a floodplain?
A) It is an erosional feature located within a depositional feature. B) Despite the name, they are rarely subjected to flooding. C) Floodplains are not associated with deposition. D) It is generally filled with layers of alluvium.
The terms polluted and contaminated have different meanings when it comes to substances put in the environment by human activity. With respect to these substances, what does polluted mean?
A. concentration is high enough to cause harm to living organisms. B. concentration is above natural levels, but harmful only to humans. C. concentration is simply above the detection limit of modern instruments. D. concentration is below natural levels and unlikely to harm humans. E. concentration is above natural levels, but not harmful to living organisms.