World Geography – Section 3

71. The Palaeozoic era contains ____ time periods.

A. Six
B. Four
C. Five
D. Seven

Correct Answer: A. Six

72. The northern portion of the western coastal plain is called

A. Konkan plain
B. Malabar coast
C. Coromandel coast
D. None of the above

Correct Answer: A. Konkan plain

73. The ozone layer at high altitude contains

A. Atomic oxygen (O) and ordinary oxygen (O2)
B. Only ozone (O3)
C. Mixture of atomic oxygen (O), ordinary oxygen (O2) and Ozone (O3)
D. Only ordinary oxygen (O2)

Correct Answer: C. Mixture of atomic oxygen (O), ordinary oxygen (O2) and Ozone (O3)

74. The number of a topographic map is 47A/16/NW. Its scale must be

A. 1 : 250,000
B. 1 : 100,000
C. 1 : 50,000
D. 1 : 25,000

Correct Answer: D. 1 : 25,000

75. The right ascension is the equivalent of longitude on the celestial sphere, and it is given in the units of

A. Degrees
B. Time-hours, minutes and seconds
C. Only hours
D. Only seconds

Correct Answer: B. Time-hours, minutes and seconds

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