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
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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
Organisms within an ecosystem that break down dead and decaying remains and waste products of organisms for their own energy requirements are called ________
A) animals B) consumers C) decomposers D) heterotrophic E) producers
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
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