76.

The longest day (shortest night) in the southern hemisphere is
A. June 21 B. December 22
C. July 21 D. November 22
Answer and Explanation
Answer:B
Explanation: No answer description available for this question.
77.

The most obvious effect of pressure on rocks is
A. foliation B. lineation
C. lithification D. the reorientation of mineral crystals
Answer and Explanation
Answer:D
Explanation: No answer description available for this question.
78.

The longest era of the classification of the history of earth is
A. Cainozoic era B. Pre-Cambrian era
C. Palaeozoic era D. Mesozoic era
Answer and Explanation
Answer:B
Explanation: No answer description available for this question.
79.

The main objective of centrally sponsored Command Area Development programme is
A. improving the utilisation of irrigation potential B. optimizing agricultural productivity and production from the irrigated area
C. both (a) and (b) D. None of the above
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.
80.

The minimum values of annual receipts of solar radiation occur at
A. the equator B. the tropics
C. the arctic D. None of the above
Answer and Explanation
Answer:C
Explanation: No answer description available for this question.