21. The iron ore mined at Bailadila is mostly

A. haematite
B. siderite
C. limonite
D. magnetic

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22. The leading state in producing paper is

A. Bihar
B. West Bengal
C. Kerala
D. Orissa

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23. The largest dune files are found in

A. Middle East
B. North Africa
C. both (a) and (b)
D. None of the above

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24. The Harmattan is

A. cool, extremely dry wind that forms over the Sahara and blows westward or south-westward to the African coast
B. wind that blows during the dry season from December to February
C. tertiary wind that carries great quantities of fine dust from the Sahara
D. All of the above

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25. The largest gold producing country in the world(in 2006) is

A. China
B. Canada
C. South Africa
D. USA

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