Which of the following is the correct IUPAC name of a carboxylic acid which contains four carbon atoms?
A) 1-methyl-1-propanoic acid
B) 1-methylpropanoic acid
C) 2-methyl-1-propanoic acid
D) 2-methylpropanoic acid
D
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What option below best characterizes the rainfall distribution at a station located south of the Sahara desert at about 20 degrees N latitude?
A) winter dry season B) adequate precipitation all year around C) dry all year around D) summer dry season
Your bare feet feel warmer on a rug than on a tile floor because the rug
A. is a better insulator than tile. B. has more thermal energy than tile. C. is usually warmer than tile. D. all of the above
The primary limitation of solar energy is the lack of money needed to fund such projects.
Answer the following statement true (T) or false (F)
Ecologists and conservation biologists see wilderness areas as ____.
A. recreational opportunities for humans B. economic benefits to humans C. areas that must not be used by humans D. areas set aside for future resource use E. ecological insurance policies