2576: The crop which grows in alluvial soil and needs 150 cm rainfall is:
(a) Wheat
(b) Rice
(c) Groundnut
(d) Sugarcane
2577: Each person's performance compared with all other persons is to be done to rank them subjectively. How many comparisons are needed in total, if there are 11 persons ?
(A) 55
(B) 66
(C) 54
(D) 45
2578: The member of Shivaji's Astha Pradhana who looked after foreign affairs was
(a) Peshwa
(b) Sachiv
(c) Pandit Rao
(d) Sumant
2579: In a particular region in India, the local people train the roots of living trees into robust bridges across the streams. As the time passes, these bridges become stronger. These unique 'living root bridges' are found in
(a) Meghalaya
(b) Himachal Pradesh
(c) Jharkhand
(d) Tamil Nadu
2580: Micro-elements needed to increase soil fertility are:
(a) Nitrogen, hydrogen and calcium
(b) Nitrogen, phosphorus and potassium
(c) Iron, calcium and potassium
(d) Manganese, copper and zinc