What is the wetted perimeter of a stream?
A) That part of a streambed that contains the strongest current
B) Where the stream is incising on the outside of a meander loop
C) Where deposition occurs in an abandoned stream channel
D) The amount of flow in contact with the banks and bed of the channel
Answer: D
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The two greenhouse gases that have the greatest impact on climate change are
A. Methane and carbon dioxide. B. Methane and water vapor. C. Nitrous oxide and methane. D. Chlorofluorocarbons and methane.
Which extensive biome is dominated by evergreen needleleaf forests?
A) boreal and montane forest B) tropical seasonal forest and scrub C) temperate rain forest D) midlatitude broadleaf and mixed forest E) tropical rain forest
During extension in divergent plate boundaries a rift valley forms as a central ________.
A. graben B. strike-slip fault C. subduction zone D. horst E. mountain range