Which of the following moisture variables describes the actual amount of moisture in the air?
A) dewpoint temperature, relative humidity, and vapor pressure
B) vapor pressure, saturation vapor pressure, and dewpoint temperature
C) absolute humidity, relative humidity, and dewpoint temperature
D) saturation vapor pressure, relative humidity, and dewpoint temperature
E) vapor pressure, dewpoint temperature, and mixing ratio
Answer: E) vapor pressure, dewpoint temperature, and mixing ratio
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The primary sources of the acidity in acid rain are the gases ________
A) H2SO4 and NO B) SO2 and NOx C) O3 and SO2 D) NOx and N2O E) O3 and VOCs
If DNA is described as resembling a ladder in structure, the "sides" of the ladder consist of ________ and the "rungs" of the ladder consist of ________.
A. sugar and nitrogenous bases; phosphate B. sugar and phospholipids; nitrogenous bases C. sugar; phosphate D. sugar and phosphate; nitrogenous bases
What do the two stars near the center of this block represent?
A. the star at depth is the place where the earthquake is generated B. the location of the earthquake C. the star at depth is the hypocenter D. the star on the surface is the epicenter E. All of these choices are correct.
Atoms that have an electrical charge due to a gain or loss of electrons are called ________
A) isotopes B) ions C) periodic elements D) isochrons