76.

The knowledge about the topography of the ocean basins has been derived from
A. seismic surveying B. echo sounder
C. side-scan sonar D. All of the above
Answer and Explanation
Answer:D
Explanation: No answer description available for this question.
77.

The headquarters of the Commonwealth of Independent States (CIS), formed out of erstwhile USSR, is at
A. Minsk in Byelorussia B. Moscow in Russia
C. Kiev in Ukraine D. Kistiner in Moldavia
Answer and Explanation
Answer:A
Explanation: No answer description available for this question.