World geography

21. The mean surface temperature of the sun is estimated to be of the order of

5500°C
4000°C
2000°C
1000°C

Detailed SolutionThe mean surface temperature of the sun is estimated to be of the order of

22. The initial increase of magnetic field in magnetic storms is caused

when the shock wave, associated with the gusty solar wind, compresses the magnetosphere
when there is a large decrease in field intensity
when the gust wind itself engulfs the magnetosphere
None of the above

Detailed SolutionThe initial increase of magnetic field in magnetic storms is caused

23. The import of crude oil and petroleum done from national oil companies of producer countries, which have a net exportable surplus of oil is by

term contracts
term tenders
monthly tenders
All the above

Detailed SolutionThe import of crude oil and petroleum done from national oil companies of producer countries, which have a net exportable surplus of oil is by

24. The main objective of centrally sponsored Command Area Development programme is

improving the utilisation of irrigation potential
optimizing agricultural productivity and production from the irrigated area
both (a) and (b)
None of the above

Detailed SolutionThe main objective of centrally sponsored Command Area Development programme is

25. The sulphites are a mineral group that contain one or more metallic elements in combination with the sulphate compound ____

SO3
SO2
SO4
SO

Detailed SolutionThe sulphites are a mineral group that contain one or more metallic elements in combination with the sulphate compound ____

26. The Rhine river of northern Europe empties into

the Baltic sea
the North sea
the Bay of Biscay
the Adriatic sea

Detailed SolutionThe Rhine river of northern Europe empties into

27. The process of soil development is called

leaching
illuviation
eluviations
pedogenesis

Detailed SolutionThe process of soil development is called

28. The model that describes how various geological processes create, modify and influence rock is called

water cycle
energy cycle
rock cycle
None of the above

Detailed SolutionThe model that describes how various geological processes create, modify and influence rock is called

29. Which of the following is most useful for measuring the shortest distance between two places on the earth and path between them?

Atlas map
Thematic maps
Wall maps
Globe

Detailed SolutionWhich of the following is most useful for measuring the shortest distance between two places on the earth and path between them?

30. The highest mountains on earth namely Mount Everest, K2, Kanchenjanga are located in

the greater Himalayas
the Lesser Himalayas
the outer Himalayas
None of the above

Detailed SolutionThe highest mountains on earth namely Mount Everest, K2, Kanchenjanga are located in

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