The ____ River was so polluted that it caught fire several times.
A. Willamette
B. Chattahoochee
C. Fox
D. Cuyahoga
E. Mississippi
Answer: D
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Hydrogen sulfide, H2S, burns in the presence of oxygen, O2, to produce water, H2O, and sulfur dioxide, SO2. Through this reaction, is sulfur oxidized or reduced? 2 H2S + 3 O2 ? 2 H2O + 2 SO2
A) Sulfur is reduced. B) Sulfur is oxidized. C) Sulfur is both oxidized and reduced. D) Sulfur is neither oxidized nor reduced.
Which of the following best matches the description?Unplanned suburban growth.
A. tract development B. land-use planning C. ribbon sprawl D. megalopolis E. wetlands F. urban sprawl G. multiple land use H. zoning I. floodplain J. floodplain zoning
In a deep-water marine food web that includes large populations of phytoplankton, zooplankton, and many species of carnivorous fish, what would happen if the populations of all species of phytoplankton decreased suddenly by 80% and stayed low for
several years? A) The fish and zooplankton populations would decrease. B) The zooplankton populations would decrease but not the fish populations. C) The zooplankton populations would increase but not the fish populations. D) The fish and zooplankton populations would increase.
If the amount of low, thick stratus cloud cover increases, the Earth's climates would likely ________ due to increased ________
A) cool; absorption B) cool; reflectivity C) warm; absorption D) warm; reflectivity