Including pairs of enantiomers, how many different trioses are there?
A) 1
B) 2
C) 3
D) 4
C
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Standing waves are a result of ____
a. wave refraction b. plunging waves c. wave reflection d. wave diffraction e. interference
Which of the following is NOT a factor cited to explain periodic long-term variations in the climate of
the Earth? a. tilt of the Earth's axis b. shape of the Earth's orbit c. speed of rotation of the Earth on its axis d. wobble of the Earth's axis e. All are factors.
Volcanic eruptions are an important natural source of ____
a. ?benzene b. ?ozone c. ?sulfur dioxide d. ?carbon monoxide e. ?chlorofluorocarbons
Where on Earth does one expect the greatest latitudinal displacement of isotherms between January and July?
A) Over the middle latitude oceans B) Over the equatorial oceans C) Over the middle latitude continents D) Over the equatorial continents E) Over the high latitude oceans