Since 1969, when the Cuyahoga River in Ohio was so polluted that it spontaneously burst into flame, the overall quality of water in the U.S. has
A. steadily declined.
B. remained unchanged.
C. steadily improved.
D. remained a non-issue.
C. steadily improved.
Environmental & Atmospheric Sciences
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Which of the following is not true of soil?
A) Soil contains a complex food web B) Fertilized soils are a source of water pollution C) Soil serves as a sink for carbon dioxide D) Soil can immobilize contaminants and remediate waste E) All of these choices are correct.
Environmental & Atmospheric Sciences
The dominant type of flora in non-swampy areas of the Late Paleozoic were ____________________
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
How and when did the region come to be known as the Middle East?
Environmental & Atmospheric Sciences
The water-balance methodology is, in essence, an accounting or bookkeeping system for water resource analysis
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences