Which is the most active volcano in the world?
(A) Qilayu
(B) Fusarium
(C) Cotopaxi
(D) None of these
What is the percentage of nitrogen in the atmosphere?
(A) 30%
(B) 80%
(C) 78%
(D) 50%
Among the three concentric layers of the earth, what is the name of the second layer from the top?
(A) NIFE
(B) SIMA
(C) Seal
(D) None of these
The correct answer is SIMA. It is also known as the 'mantle' and is the second layer of the Earth's three concentric layers, the other two being SIAL (crust) and NIFE (core). The major constituent elements of SIMA (second layer) are magnesium and silicon.
What is the number of longitudes?
(A) 60
(B) 360
(C) 180
(D) 90
Which of the following countries does not pass through the Tropic of Cancer?
(A) Zaire
(B) China
(C) India
(D) All these
Greenwich is in which country?
(A) U.K.
(B) Holland
(C) U. s. a.
(D) India
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