D
of the nervous system.
29. When swollen by melting snow or heavy rain, some rivers routinely overflow
A B C
its banks.
D
30. In 1884 Belva Lockwood, a lawyer who had appeared before the Supreme Court,
A B
became the first woman was nominated for President of the United States.
C D
31. The taller of all animals, a full-grown giraffe may be eighteen feet or more high.
A B C D
32. Physicists have known since the early nineteenth century that all
A B
matter is made up of tiny extremely particles called atoms.
C D
33. Rain is slight acidic even in unpolluted air, because carbon dioxide
A B
in the atmosphere and other natural acid-forming gases dissolve in the
C
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