1. NATURAL SCIENCE 2
THIRD EXAM REVIEW
By Prof. Walter B. Valencerina
Information Officer

2. Choose Question #
1 2 3 4 5 6 7
8 9 10 11 12 13
14
15 16 17 18 19 20 21

3. #1
Which scale measures the magnitude of
an earthquake?
a. Richter scale
b. measuring scale
c. weighing scale
d. Earth’s scale

4. Answer to # 1
A. Richter
scale

5. #2
Which of the following geologic process
involves the process of deformation
that produced the surface features of
the earth?
a. erosion
b. earthquake
c. eruption
d. diastrophism

6. Answer to # 2
D.
diastrophism

7. #3
It is the process that would usually
result to mountain formation.
a. weathering
b. diastrophism
c. orogenesis
d. volcanism

8. Answer to # 3
C.
orogenesis

9. #4
It is referred to as the hot, plastic
material where the lithosphere floats?
a. crust
b. mantle
c. core
d. asthenosphere

10. Answer to # 4
D.
asthenosphere

11. #5
It is known as a vent or opening in the
surface of the Earth through which
magma and associated gases and ash
erupt.
a. volcano
b. mountain
c. explosion
d. fault

12. Answer to # 5
A. volcano

13. #6
What do you call the point on the
ground directly above the focus?
a. fault lines
b. wave fronts
c. epicenter
d. focal point

14. Answer to # 6
C. epicenter

15. #7
What landmass can be shaped by
moving water?
a. valley
b. mountain
c. volcano
d. hill

16. Answer to # 7
A. valley

17. #8
The slow but continuous process of
breaking rocks is called
a. deposition
b. decomposition
c. erosion
d. landslide

18. Answer to # 8
B.
decomposition

19. #9
What will happen if rocks are subjected
to disintegration?
a. size of the rock changed
b. color of the rock changed
c. texture of the rock changed
d. mineral content of the rock changed

20. Answerto # 9
B.
decomposition

21. # 10
The downhill movement of particles and
rocks is due to
a. wind
b. gravity
c. water
d. landslide

22. Answer to # 10
B. gravity

23. # 11
Which of the following geologic events
will result to bending of rocks?
a. folding
b. faulting
c. deforestation
d. erosion

24. Answer to # 11
A. folding

25. # 12
What do you call the sensitive
instrument that measures and records
seismic waves?
a. seismology
b. seismogram
c. seismograph
d. siesmometer

26. Answer to # 12
C.
seismograph

27. # 13
What is the densest layer of the Earth?
a. crust
b. mantle
c. inner core
d. outer core

28. Answer to # 13
D. Inner core

29. # 14
Which of the following processes is not
destructive to rocks?
a. weathering
b. erosion
c. earthquake
d. orogenesis

30. Answer to # 14
D.
orogenesis

31. # 15
What type of rock will be formed when it
is subjected to stress such as when
earthquake occur?
a. igneous
b. sedimentary
c. metamorphic
d. inorganic

32. Answer to # 15
C. metamorphic

33. # 16
Hot molten material that is not able to
reach the Earth’s surface is called
a. magma
b. lava
c. rock
d. sediments

34. Answer to # 16
B. lava

35. # 17
Type of sedimentary rock formed by
chemical precipitation is called
a. clastic
b. organic
c. chemical
d. inorganic

36. Answer to # 17
C. chemical

37. # 18
A type of rock formed when molten rock
or magma originating deep within the
mantle layer solidifies
a. Igneous
b. Sedimentary
c. Metamorphic
d. organic

38. Answer to # 18
A. igneous

39. # 19
The type of rock produced by intense
heat or pressure
a. igneous
b. metamorphic
c. sedimentary
d. biological

40. Answer to # 19
B.
metamorphic

41. # 20
Anticlines and synclines are the 2 most
common types of
a. rock deformation
b. rock folding
c. rock disintegration
d. rock movement

42. Answer to # 20
A. rock
deformation

43. # 21
Which of the following practices
promote water conservation?
a. deforestation
b. reforestation
c. kaingin
d. erosion

44. Answer to # 21
B.
reforestation