In what tectonic environment can we expect clockwise P–T paths to form?
What will be an ideal response?
Answer: A clockwise P–T path implies rapid increase in pressure followed by heating and then decompression. This is difficult to achieve except in subduction settings, where rocks are buried during subduction and later exhumed.
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Currently, glaciers cover approximately ________ percent of the earth's surface.
A. 10% B. 1% C. 50% D. 30%
A Generation III nuclear reactor design is an improvement on old designs because it has
A) water as a coolant. B) control rods. C) passive safety features. D) fewer working parts.
The continents have been in the exact same locations since the earth began
Indicate whether the statement is true or false
A community of different organisms interacting with one another and with their nonliving environment of soil, water, and other forms of matter is called
A. a species. B. an ecosystem. C. a population. D. a lithosphere. E. a community.