Photochemical smog generally requires the presence of

a. nitrogen oxides
b. Sunlight
c. volatile organic compounds
d. Heat
e. all of these answers


E

Environmental & Atmospheric Sciences

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The U.S. General Mining Law of 1872 was in effect until

a. 1873 b. 1900 c. 1950 d. 1995 e. This law is still in effect today.

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The crust and the underlying uppermost mantle make up the ____________________. Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences

Why did surveyors miscalculate latitudes in India in the 1800s?

A) gravitational deflection of plumb lines B) inaccurate readings of stars C) magnetic deflection of plumb lines D) incorrect calculations with correct data

Environmental & Atmospheric Sciences

Which of the following is a correct IUPAC name?

A) 2-ethyl-3-methylpentane B) 2,2-dimethylpentane C) 2,2-diethylpentane D) all of them

Environmental & Atmospheric Sciences