When an eruption cloud spills downslope from the crater rim, it forms a(n) _______________ flow
Fill in the blank with correct word.
ANSWER: ?pyroclastic
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Vitreous luster is characteristic of:
a. pyrite b. limonite c. quartz d. galena
Which of the following does not describe a stream's capacity?
A) It is always closely related to a stream's competence. B) It is defined as a volume of sediment passing a given point during a given time. C) It varies tremendously from time to time. D) It depends mostly on fluctuations in the volume and velocity of flow. E) It is the potential load a stream can transport.
As fission occurs in a nuclear reactor, the concentration of U-235 atoms
A. decreases. B. increases. C. converts to plutonium atoms. D. remains constant.
The dominant cooling process on Earth results from condensation
Indicate whether the statement is true or false