Which regions of North America experienced the greatest temperature differences from current values during the last glacial episode of the Pleistocene?

A) Pacific Northwest
B) Southern Florida
C) Tennessee and South Carolina
D) little difference across North America


Answer: C

Environmental & Atmospheric Sciences

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The fires on the Cuyahoga River due to pollution from 1868 to 1969 raised concerns that contributed to

A) the formation of the U.S. Food and Drug Administration. B) the passage of the Clean Water Act of 1972. C) laws requiring the separation of sewage and storm water in cities. D) the passage of the Federal Water Pollution Control Act.

Environmental & Atmospheric Sciences

How would you classify the following material? swimming pool water

A) homogeneous mixture B) heterogeneous mixture C) a pure element D) a pure compound E) depends on how many children have been in it

Environmental & Atmospheric Sciences

The EF-scale is used to classify ____________________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

Historically, which of the following considerations in setting standards for toxic exposure has been emphasized the least?

A. Different members of the population have different sensitivities to toxins B. Individuals in the human population have been exposed to many different kinds of toxins that may have additive or synergistic effects C. Including information about how toxins affect natural ecological systems D. Including information about both chronic and acute exposures to a toxin E. All of these considerations have been used and are important in setting policy

Environmental & Atmospheric Sciences