General Knowledge - World Geography

Exercise :: World Geography - Section 3

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)

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

76. 

The radiation belts are zones in space around the

A. Earth
B. Jupiter and Saturn
C. Mercury
D. Earth, Jupiter and Saturn

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

77. 

The periods of different eras are further divided into

A. eons
B. epochs
C. stages
D. Any of the above

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

78. 

The Plio-Pleistocene boundary lies about ____ years ago, at the beginning of the interval of warming after the last Pleistocene glaciations.

A. 1,00,000
B. 1,000
C. 10,000
D. 100

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.