The percentage of water vapor present in the air compared to that required for saturation is the ____
A) mixing ratio
B) absolute humidity
C) dew point
D) relative humidity
D
Environmental & Atmospheric Sciences
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As the solar system began forming, the first materials to condense into small particles were ________ and nickel
A) nitrogen B) carbon C) oxygen D) silicon E) none of these
Environmental & Atmospheric Sciences
The overall rate at which humans are producing carbon dioxide is
A. some years increasing and other years decreasing. B. increasing. C. remaining about the same. D. decreasing.
Environmental & Atmospheric Sciences
A great example of a trace fossil would be the impression left by a crawling trilobite, an extinct arthropod
a. True b. False
Environmental & Atmospheric Sciences
All silicate minerals contain the elements silicon and ____
A)hydrogen B)helium C)carbon D)sodium E)oxygen
Environmental & Atmospheric Sciences