12. All of the following ways are used by scientist in finding out
if a fault is active, which is NOT
a. historical records
C. vibrations from faults
b. observing the surrounding d. climate of the country
13. What type of earthquake wave travel through solid rock and
fluids, and their speed will vary depending on the density of
the rock through which it travels?
a. primary wave c. secondary wave
b.
surface wave
d. P and S waves
14. The record of earthquake waves produced is called
a. seismograph c. seismogram
b. rayleigh wave
d. love wave
15. What type of path do P and S waves take as they travel
through the earth's interior?
a. curved b. linear C. circulard. parabolic
16. The following are instances on how underwater
earthquakes generate tsunamis. Which does not
demonstrate such characteristics?
a. The quakes have to be sufficiently large. Noticeable
tsunamis require earthquakes of about magnitude
seven or larger and widely damaging tsunamis usually
require earthquake magnitudes of at least eight or
greater
b. An extra lump of water at the surface will collapse
under gravity to produce a series of waves
C. The ocean floor be deformed vertically
d. Slight shaking of the sea floor would already cause
tsunami since water is sensitive to movement
17. What conditions do tropical cyclones form?
a. It requires warm ocean waters to be able to develop
b. It needs raindrops in order to form
C. It needs cold ocean waters to be able to develop
d. The temperature of ocean water must be less than 20
degree Celsius
18. Why tropical cyclones move in a northwest direction?
a. It is the direction of tropical cyclones
b. Presence of air masses that push the tropical
cyclones in that direction
C. There are flowing stream in that direction
d. There are large scale winds that push the tropical
cyclones in that direction
19. A typhoon usually forms over warm tropical oceans that are
sufficiently far from the
a. tropic of cancer C. tropic of Capricorn
b. equator
d. polar region
20. Condensation of water vapour serves as the fuel that keeps
the typhoon going. When a typhoon makes a landfall
, what
happens with its energy source?
a. cut off
C. increases
b. remains the same d. decreases
21. Typhoons are low pressure areas, in what direction do the
wind blows in the northern hemisphere?
a. clockwise
C. counter clockwise
b. forward
d. downward
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