Of the following, ________ are classified as hazardous heavy metals

A) lead, mercury, cadmium
B) carbon, hydrogen, oxygen
C) nitrogen, phosphorus, potassium
D) aluminum, iron, silicon
E) any non-biodegradable materials


A

Environmental & Atmospheric Sciences

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The presence of which of the following indicates the health of a stream or lake?

A) chlorofluorocarbons B) hydrocarbons C) sulfur dioxide D) dissolved oxygen concentrations

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On December 22, the equator (0o latitude) would experience fewer hours of daylight than the

latitude 60o N. Indicate whether the statement is true or false.

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Hemoglobin is an example of which of the following?

A) an allosteric protein B) a conjugated protein C) both a and b D) neither a nor b

Environmental & Atmospheric Sciences

Natural selection acts on ____, while ____ evolve.

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences