________ is often paraphrased as "the present is the key to the past."


Answer: Uniformitarianism

Environmental & Atmospheric Sciences

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A gneiss containing kyanite and sillimanite most likely formed from a metamorphosed

A) limestone. B) mafic igneous rock. C) coal. D) shale.

Environmental & Atmospheric Sciences

Considerations that complicate our understanding of geologic processes include

A. the very long times required for some kinds of changes to occur. B. the fact that it may be difficult to relate the results of controlled laboratory experiments to natural systems. C. the fact that many different events may have affected one rock during its history. D. All of the choices are correct.

Environmental & Atmospheric Sciences

After a plankton bloom, nonconservative nutrients are produced in high levels

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

PPP in GNI PPP accounts for:

A) petroleum exports B) how much a person's income can really buy C) life expectancy D) gender inequality

Environmental & Atmospheric Sciences