Page 343 - GMAT 2017b_Neatb

General Science Test

82. Two children are seated on a seesaw. The first child, (B) gliding joint
seated 4 feet from the center, weighs 80 pounds. If the (C) hinge joint
second child weighs 40 pounds, how far from the center (D) pivot joint
must that child sit to balance the seesaw?
(A) 1 foot 91. AIDS is a disease caused by a
(B) 2 feet (A) bacillus
(C) 8 feet (B) saprophyte
(D) 16 feet (C) spirillum
(D) virus
83. The part of the digestive system in which most of the
digested materials are absorbed into the bloodstream is 92. Lack of Vitamin D is often related to which of the
the following diseases?
(A) large intestine (A) Beriberi
(B) liver (B) Scurvy
(C) small intestine (C) Goiter
(D) stomach (D) Rickets

84. Skeletal muscles are joined to bones by tough 93. Why will a given quantity of steam always produce a
connective tissue called more severe burn than that produced by the same
(A) cartilage quantity of boiling water?
(B) ligaments (A) Steam always penetrates the epidermis.
(C) muscle fibers (B) Steam causes the skin to contract and break.
(D) tendons (C) Steam always releases more heat per gram than
water.
85. Hearing an echo is most like seeing (D) Steam always covers more area of the skin.
(A) around the corner through a periscope
(B) fine print under strong illumination 94. A lead sinker weighs 54 grams in air, 23.8 grams in
(C) stars at night that are invisible in the daytime liquid A, and 28.6 grams in liquid B. From this
(D) one’s image in a mirror information, what conclusions can be draw
concerning the densities of the two liquids?
(A) Liquid A has a greater density than liquid B.
86. Vitamin K is needed for
(B) Both liquids are more dense than water.
(A) energy release
(C) Both liquids are less dense than water.
(B) formation of bones (D) No conclusions can be drawn concerning the
(C) normal blood clotting
(D) normal metabolism densities of the two liquids.
95. After adding a solute to a liquid, the freezing point of
87. Refraction of light affect the aim one should take when
(A) shooting at a fish that has jumped out of the water. the liquid is
(B) spearing a fish in the water from the bank. (A) lowered
(C) spearing a fish under water when one is swimming (B) the same
under water. (C) raised
(D) casting a fly on the surface of the water. (D) inverted

96. Organisms that sustain their life cycles by feeding off
88. The primary reason designers seek to lower the center
other live organisms are known as
of gravity in automobiles is to
(A) parasites
(A) reduce wind resistance (B) saprophytes
(B) provide smoother riding
(C) increase stability (C) bacteria
(D) reduce manufacturing costs (D) viruses
97. Chemicals that have been pumped into the air by
89. Substances that hasten a chemical reaction without
themselves undergoing change are called industries cause air pollution. This leads to
(A) buffers (A) acid rains that destroys crops and animals.
(B) catalysts (B) respiratory ailments in animals and people.
(C) colloids (C) possible changes in the animals
(D) reducers (D) All of the above.

90. A hip joint is best described as a
(A) ball-and-socket joint
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