Which of the following best describes the odors of aromatic compounds?
A) They all have strong odors.
B) They all have pleasant odors.
C) They all have unpleasant odors.
D) Some have pleasant odors, some have unpleasant odors, and some are odorless.
D
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The air above this current is characterized by extremely strong pressure gradients and relative lack of land interruptions that induce extremely strong westerly winds.
A) California Current B) Gulf Stream C) Antarctic Circumpolar Current D) North Equatorial Current
"The present is the key to the past." This statement relates to _____
a) Catastrophism b) Uniformitarianism c) Aristotle's hypothesis d) William Smith's theory e) None of the above
The Atacama Desert of northern Chile is the world's driest region
a. True b. False Indicate whether the statement is true or false
Which of the following is produced in the Earth's upper atmosphere as a result of excited atoms and molecules giving off visible light?
A. prominences B. flares C. solar wind D. aurora