Explain how a stream that is initially nearly straight can eventually produce an oxbow lake
Slight meanders in the stream become exaggerated over time as erosion occurs at the outside cut bank and deposition occurs at the inside point bar. Flood waters may bypass particularly long meanders, taking a shortcut and cutting a new channel that leaves much of the meander isolated, becoming an oxbow lake.
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Which statement is true with regard to subduction zones?
A) They are also referred to as hot spots. B) They are sites where lithospheric plates are diverging or pulling apart. C) They are marked by the presence of mid-ocean ridges. D) They are zones where old seafloor descends into the crust and mantle.
Below a caloric intake of ________ kcal per day, on average, a person is considered chronically undernourished.
A. 1,200 B. 4,200 C. 2,200 D. 3,200
Characteristics of high-performance green buildings are
A. native vegetation used in landscaping. B. location near public transportation. C. low flow water fixtures. D. All of these are correct.
The light-color layers within a typical gneiss are formed by ________.
A. pyroxenes B. amphiboles C. calcite D. feldspars E. olivine