What type of rock forms through solid-state alternation of a previously existing rock, by heating, pressure, and/or fluid chemistry?

a) igneous
b) alternative
c) metamorphic
d) precipitates


Ans: c) metamorphic

Environmental & Atmospheric Sciences

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a. may evaporate into the atmosphere b. may enter groundwater when there are no liners or when liners leak c. may contaminate surface water d. all of these answers e. none of these answers

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A time zone is approximately ________ degrees wide.

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