51. The middle latitude extends between

A. 23(1/2)° North to 32(1/2)° South
B. 23(1/2)° and 66° in both the hemispheres
C. 66° North to 66° South
D. North pole and South pole

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52. The major graphite producing country is

A. Russia
B. Sri Lanka
C. India
D. China

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53. The maximum soil fertility occurs in the pH range of

A. 5.0 to 6.2
B. 6.0 to 7.2
C. 7.0 to 8.2
D. 4.0 to 5.2

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54. The mica belt of the Himalayas, the major part of it is situated in

A. Andhra Pradesh
B. Bihar
C. Rajasthan
D. West Bengal

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55. The most well-known member of the Halick group is

A. Halite
B. Pyrite
C. Galena
D. Hematite

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