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33. (LEVEL II) The following text are for questions
It can be inferred from the passage 35 to 38.
that Lyme disease has become The air we breathe contains the
prevalent in parts of the United gases oxygen and nitrogen, as well as
States because of which of the small quantities of other gases. Every
following? gas consists of molecules of a particular
A. The inadvertent introduction of substance moving rapidly about. The
Lyme disease bacteria into the molecules are comparatively far apart,
United States. but they fill any vessel containing them
B. The inability of modern evenly. All gases can be changed to
sanitation methods to eradicate liquids, and some even to solids, if they
Lyme disease bacteria. are cooled down enough.
C. A genetic mutation in Lyme
disease bacteria that makes The oxygen used in factories to
them more virulent. make a very hot flame to cut and weld
D. The spread of Lyme disease steel is sometimes stored and carried
bacteria from infected humans about in the liquid state and as solid
to noninfected humans. carbon dioxide, usually called dry ice. It
E. An increase in the number of is used for keeping ice cream cold.
humans who encounter deer The kinds of gases used in cookers
ticks. and gas fires come from three sources.
The first kind is made of naphtha, which
34. (LEVEL III) is light oil; the second is made from
Which of the following can most coal; and the third, natural gas, is almost
reasonably be concluded about the entirely methane.
mosquito Aedes albopictus on the
basis of information given in the Geologists believe that natural gas
passage? was produced by iron carboniferous,
A. It is native to the United States. or coal-bearing rocks. The gas rose into
B. It can proliferate only in Asia. the rock holes in the sandstone and was
C. It sets the stage for the dengue prevented from escaping upwards out
epidemic. of the sandstone by a “cap” rock, usually
D. It causes an epidemic of dengue a form of rock salt, which formed a dome
hemorrhagic fever in the 1950s. over the natural reservoir of gas.
E. It replaced Aedes aegypti in In Jakarta and other big cities in
Asia when ecological changes Indonesia, it is common practice to
altered Aedes aegypti’s habitat. use gas for cooking. Gas reaches the
houses through large underground
pipes called gas mains, and smaller
pipes called service pipes lead to the
gas meters in each house or building.
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