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Exam Year: 2011

  • ,

    The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?

    (a)

    It has a high rainfall that supports luxuriant vegetative growth.

    (b)

    It is a confluence of different biogeographical zones.

    (c)

    Exotic and invasive species have not been invasive species and have not been introduced in this region.

    (d)

    It has less human interference.

    Correct Answer:

    (b)

  • ,

    What is the difference between asteroids and comets?
    1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
    2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and mercury.
    3. Comets show a perceptible glowing tail, while asteroids do not.
    Which of the statements given above is/are correct?

    (a)

    1 and 2 only

    (b)

    1 and 3 only

    (c)

    3 only

    (d)

    1, 2 and 3

    Correct Answer:

    (b)

  • ,

    The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge?

    (a)

    The mangrove swamps separate the human settlements from the sea by a wide zone in which people neither live nor venture out.

    (b)

    The mangroves provide both food and medicines which people are in need of after any natural disaster.

    (c)

    The mangrove trees are tall with dense canopies and serve as an excellent shelter during a cyclone or Tsunami.

    (d)

    The mangrove trees do not get uprooted by storms and tides because of their extensive roots.

    Correct Answer:

    (d)

  • ,

    Consider the following: 1. Carbon dioxide 2. Oxides of nitrogen 3. Oxides of Sulphur Which of the above is/are the emission/emissions from coal combustion at thermal power plants?

    (a)

    1 only

    (b)

    2 and 3 only

    (c)

    1 and 3 only

    (d)

    1, 2, and 3

    Correct Answer:

    (d)

  • ,

    Two important rivers- one with its source in Jharkhand (and known by a different name in Odisha), and another, with its source in Odisha- merge at a place only a short distance from the coast of Bay of Bengal before flowing into the sea. This is an important site of wildlife and biodiversity and a protected area. Which one of the following could be this?

    (a)

    Bhitarkanika

    (b)

    Chandipur-on-sea

    (c)

    Gopalpur-on-sea

    (d)

    Simlipal

    Correct Answer:

    (a)

  • ,

    There is a concern over the increase in harmful algal blooms in the seawater of India. What could be the causative factors for this phenomenon?
    1. Discharge of nutrients from the estuaries.
    2. Run-off from the land during the monsoon.
    3. Upwelling in the seas.

    (a)

    1 only

    (b)

    1 and 2 only

    (c)

    2 and 3 only

    (d)

    1, 2 and 3

    Correct Answer:

    (d)

  • ,

    Which one of the following is not a site for in-situ method of conservation of flora?

    (a)

    Biosphere Reserve

    (b)

    Botanical Garden

    (c)

    National Park

    (d)

    Wildlife Sanctuary

    Correct Answer:

    (b)

  • ,

    With reference to micro-irrigation, which of the following statements is/are correct? 1. Fertilizer/nutrient loss can be reduced. 2. It is the only means of irrigation in dry land farming. 3. In some areas of farming, receding of the groundwater table can be checked.

    (a)

    1 only

    (b)

    2 and 3 only

    (c)

    1 and 3 only

    (d)

    1, 2 and 3

    Correct Answer:

    (c)

  • ,

    Regarding “carbon credits’’, which one of the following statements is not correct?

    (a)

    The carbon credit system was ratified in conjunction with the Kyoto protocol.

    (b)

    Carbon credits are awarded to countries or groups that have reduced greenhouse gases below their emission quota.

    (c)

    The goal of the carbon credit system is to limit the increase of carbon dioxide emission.

    (d)

    Carbon credits are traded at a price fixed from time to time by the United Nations environment programs.

    Correct Answer:

    (d)

  • ,

    Biodiversity forms the basis for human existence in the following ways:
    1. Soil formation
    2. Prevention of soil erosion
    3. Recycling of waste
    4. Pollination of crops
    Select the correct answer using the code given below:

    (a)

    1, 2, and 3 only

    (b)

    2, 3, and 4 only

    (c)

    1 and 4 only

    (d)

    1, 2, 3 and 4 only

    Correct Answer:

    (d)