24. The seismic discontinuity at the base of the crust is known as the
A. Transition zone
B. Magnetic reflection point
C. Low-velocity zone
D. Mohorovicic
E. Spreading-ridges zone
25. The southern part of Pangea, consisting of South America, Africa, India, Australia, and Antarctica, is called
A. Laurasia
B. Gondwana
C. Panthalassa
D. Laurentia
E. Baltica
55. Which of the following pair of planets and their natural satellites are CORRECT?
59. The figure below shows the life cycle of the sun. The following are true describing the condition of Q, EXCEPT
I. It has expanded and engulfed probably all the inner planets
II. It might go supernova anytime
III. Change from yellowish to reddish-orange in colour
IV. Rigel is an example of star in the stage of Q
A. I & II
B. I & III
C. II & III
D. II & IV
E. I & IV
65. Which of the following comparison between fresh water and sea water is most accurate?
Fresh water | Sea water | |
A | Low density | High density |
B | Freezes quickly | Freezes slowly |
C | pH: neutral | pH: slightly alkaline |
D | Boils early | Boils later |
E | High refractive index | Low refractive index |
79. The diagram shows the Ekman spiral, where the topmost arrow indicates the direction of the wind just above the surface of the ocean, and the other arrows show how the directions of the ocean current changes with depth. What cause this spiral?
A. The existence of Ekman transport perpendicular to the wind direction
B. The increasing density of sea water with depth
C. The existence of water vortex at the seafloor
D. The frictional drag between subsequent water layers
E. The revolving of the Earth on its orbit
80. Which of the following marine features or ecosystems can be found in Malaysia?
I. Mangrove estuaries
II. Ocean trenches
III. Deep-sea reefs
IV. Coral reefs
A. I & II
B. I & IV
C. II & III
D. II & IV
E. III & IV
Rock Type | Rock Sample (A,B,C,D) | Rock Texture |
Igneous | ||
Crystalline with foliated grain | ||
C |
Zone | Star Classes |
A | |
B | |
C | |
D |
0.001% | 0.01% | 0.6% | 1.8% | 98% |
Reservoirs | Percentage of volume (%) |
Atmosphere | |
Groundwater | |
Oceans | |
Ice caps | |
Lakes and rivers |
Reservoirs | Impact on percentage of the reservoirs | Arguments |
Atmosphere | ||
Oceans | ||
Ice caps |
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