Page 338 - GMAT 2017b_Neatb

General Science Test

GENERAL SCIENCE TEST

100 QUESTIONS
60 MINUTES

This is a set of questions to find out how much you know about general
science. Pick the best answer for each question, then blacken the space on
your answer sheet that has the same number and letter as your choice.

1. Under natural conditions, large quantities of organic 7. Spiders can be distinguished from insects by the fact
matter decay after each year’s plant growth has been that spiders have
completed. As a result of such conditions (A) hard outer coverings.
(A) many animals are deprived of adequate food (B) large abdomens.
supplies. (C) four pairs of legs.
(B) soil erosion is accelerated. (D) bitting mouth parts.
(C) soils maintain their fertility.
(D) earthworms are added to the soil. 8. An important ore of uranium is called
(A) hematite
2. The thin, clear layer that forms the outer coat of the (B) chalcopyrite
eyeball is called the (C) bauxite
(A) pupil. (D) pitchblende
(B) iris.
(C) lens. 9. Of the following, the lightest element known on
(D) cornea. Earth is
(A) hydrogen
3. The most likely reason why dinosaurs became extinct (B) oxygen
was that they (C) helium
(A) were killed by erupting volcanoes. (D) air
(B) were eaten as adults by the advancing
mammalian groups. 10. Of the following gases in the air, the most plentiful is
(C) failed to adapt to a changing environment. (A) argon
(D) killed each other in combat. (B) oxygen
(C) nitrogen
4. Which of the following is a chemical change? (D) carbon dioxide
(A) Magnetizing a rod of iron
(B) Burning one pound of coal 11. When two forces act on an object in the same
(C) Mixing flake graphite with oil direction, the resultant force is equal to the
(A) difference between the forces
5. In the process of manufacturing food, plants (B) product of the forces
(A) create energy (C) ratio of the forces
(B) destroy energy (D) sum of the forces
(C) store energy of the sun
(D) do not need the energy of the sun 12. Of the following types of clouds, the ones that occur
at the greatest altitude are called
6. One-celled animals belong to the group of living (A) cirrus
things known as (B) nimbus
(A) protozoa (C) cumulus
(B) annelida (D) stratus
(C) porifera
(D) arthropoda 13. A new drug for treatment of tuberculosis was being
tested in a hospital. Patients in Group A actually
received doses of the new drug; those in Group B
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