Which ion has the shortest residence time in the oceans?

A. Chloride
B. Sodium
C. Sulfate
D. Iron
E. Potassium


Answer: D

Environmental & Atmospheric Sciences

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Which factor is more likely to increase the likelihood of a couple having a child?

A. need for child to be part of the labor force B. religious beliefs C. cost of child's education D. lack of a pension system E. employment opportunities for women

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Substance(s) that qualify to be called particulate air pollutants include

A. carbon dioxide. B. ozone. C. nitrogen oxides. D. smoke.

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  Figure 3.15 Generalized pyramid of energy flow showing the decrease in usable chemical energy available at each succeeding trophic level in a food chain or food web. ? Use the accompanying figure to answer the following five questions. ? Why is heat shown as being lost to the environment?

What will be an ideal response?

Environmental & Atmospheric Sciences

In percolating rainwater, dissolved gases and the decay products of local vegetation increases the water's capacity to ________

A) evaporate B) condense C) drive chemical reactions D) freeze E) undergo mechanical weathering

Environmental & Atmospheric Sciences