What is the term for ocean components not accounted for by the weathering of continents?

a. Conservative constituents
b. Excess volatiles
c. Nonconservative constituents
d. Trace elements


ANS: B
Excess volatile are the components in the ocean that are not form the weathering of continents as the
conservative constituents. These appear to be from the upper mantle. Information can be found in the
section Seawater Consists of Water and Dissolved Solids.

Environmental & Atmospheric Sciences

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B) Southeast
C) Northwest
D) Northeast

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A cut-off meander is also known as

A. an oxbow. B. a floodplain. C. a delta. D. a drainage basin.

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Calculate the percent increase in CO2 between 1960 (at 320 ppm) and 2010 (at 400 ppm). The best answer is

A. 80%. B. 400%. C. 25%. D. 20%.

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If both fields had the same amount of grasshoppers at the start of the experiment, how many times more grasshoppers were in the west field than the east field after 10 weeks?

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Environmental & Atmospheric Sciences