What is a talus?

A) a pile of rock with no vegetation covering it
B) an arm of debris and regolith
C) a pile of rock at the bottom of a steep slope
D) a scooped-out area caused by a fall or slip of debris


Answer: C

Environmental & Atmospheric Sciences

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In terms of biogeochemical cycles, calcium has a(n) ________

A) mysterious cycle B) non-repeatable cycle C) asynchronous cycle D) cycle very similar to that of nitrogen E) sedimentary cycle

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  The most active decomposition occurs in the area marked ________ on the horizontal axis of the diagram.

A. -1 to 0 B. 0 to 1 C. 2 to 3 D. 1 to 3 E. 1 to 2

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People of which of the following countries of Central Asia are noted for their traditional economy based on transhumance?

A) Kazakhstan B) Turkmenistan C) Afghanistan D) Kyrgyzstan E) Tibet

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