Air pollution is solely an urban problem.
Answer the following statement true (T) or false (F)
False
Air pollutants generated in urban areas can travel long distances in the atmosphere and return to earth far from the source.
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The reflection of sound is
A. a reverberation. B. a rare occurrence. C. an echo. D. none of the above
Which statement is true concerning estuaries?
A) Organisms cannot survive in estuaries. B) Estuaries are very vulnerable to pollution. C) The salinity in estuaries is stable, with very little fluctuation. D) An estuary is a type of delta.
The growth rate of the world population equals ________.
A. the death rate minus the birthrate B. the birthrate plus the death rate C. the birthrate minus the death rate D. None of these choices are correct.
Analyze the concept map above and consider how this applies to biogeochemical cycles. Which selection is most appropriate for a geosphere to hydrosphere interaction (letter G on the diagram)?
A. Weathering B. Rock formation C. Organic decomposition D. Burning fossil fuels