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Exam Year: 2011

  • ,

    The Brahmaputra, Irrawaddy and Mekong Rivers originate in Tibet’s narrow and parallel mountain ranges in their upper reaches. Of these rivers, Brahmaputra makes a “U” turn in its course to flow into India. This “U” turn is due to

    (a)

    Uplift of folded Himalayan series

    (b)

    Syntaxial bending of geologically young Himalayas

    (c)

    Geo-tectonic disturbance in the tertiary folded mountain chains

    (d)

    Both (a) and (b) above

    Correct Answer:

    (b)

  • ,

    The lower Gangetic plain is characterized by a humid climate with high temperature throughout the year. Which one among the following pairs of crops is most suitable for this region?

    (a)

    Paddy and cotton

    (b)

    Wheat and Jute

    (c)

    Paddy and Jute

    (d)

    Wheat and cotton

    Correct Answer:

    (c)

  • ,

    What could be the main reason/reasons for the formation of African and Eurasian desert belts?
    1. It is located in the sub-tropical high pressure cells.
    2. It is under the influence of warm ocean currents.

    (a)

    1 only

    (b)

    2 only

    (c)

    Both 1 and 2

    (d)

    Neither 1 nor 2

    Correct Answer:

    (a)

  • ,

    In the context of ecosystem productivity, marine upwelling zones are important as they increase marine productivity by bringing the:

    (a)

    Decomposer microorganisms to the surface

    (b)

    Nutrients to the surface

    (c)

    Bottom-dwelling organisms to the surface

    (d)

    None of the above

    Correct Answer:

    (b)

  • ,

    Consider the following statements: 1. Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes. 2. Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes. Which of the statements given above is/are correct?

    (a)

    1 only

    (b)

    2 only

    (c)

    Both 1 and 2

    (d)

    Neither 1 nor 2

    Correct Answer:

    (c)

  • ,

    La Nina is suspected to have caused recent floods in Australia. How is La Nina different from EI Nino?
    1. La Nina is characterized by unusually cold ocean temperature in the equatorial Indian ocean whereas EI Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean.
    2. EI Nino has an adverse effect on the southwest monsoon of India, but La Nina has no effect on monsoon climate.
    Which of the statements given above is/are correct?

    (a)

    1 only

    (b)

    2 only

    (c)

    Both 1 and 2

    (d)

    Neither 1 nor 2

    Correct Answer:

    (d)

  • ,

    The “Red Data Books’’ published by the International Union for Conservation of Nature and Natural Resources (IUCN) contain lists of

    (a)

    Endemic plant and animal species present in the biodiversity hotspots.

    (b)

    Threatened plant and animal species.

    (c)

    Protected sites for conservation of nature and natural resources in various countries.

    (d)

    None of the above

    Correct Answer:

    (b)

  • ,

    Among the following states, which one has the most suitable climatic conditions for the cultivation of a large variety of orchids with minimum cost of production, and can develop an export-oriented industry in this field?

    (a)

    Andhra Pradesh

    (b)

    Arunachal Pradesh

    (c)

    Madhya Pradesh

    (d)

    Uttar Pradesh

    Correct Answer:

    (b)

  • ,

    If a tropical rainforest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because

    (a)

    The soil of the rainforest is deficient in nutrients.

    (b)

    Propagules of the trees in a rainforest have poor viability.

    (c)

    The rain forest species are slow growing.

    (d)

    Exotic species invade the fertile soil of the rainforest.

    Correct Answer:

    (a)

  • ,

    Three of the following criteria have contributed to the recognition of western Ghats, Sri Lanka and Indo-Burma regions as hotspots of biodiversity: 1. Species richness 2. Vegetation density 3. Endemism 4. Ethno-botanical importance 5. Threat perception 6. Adaptation of flora and fauna to warm and humid conditions Which three of the above are correct criteria in this context?

    (a)

    1, 2 and 6 only

    (b)

    2, 4 and 6 only

    (c)

    1, 3 and 5 only

    (d)

    3, 4 and 6 only

    Correct Answer:

    (c)