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Environmental Science - section-12
Environmental Science - section-13
  1. The most abundant greenhouse gas in the earth's atmosphere:

    2. A.

     Carbon dioxide (CO2)
    B.

     Nitrous oxide (N2O)
    C.

     Water vapour (H2O)
    D.

     Methane (CH4)
    E.

     Chlorofluorocarbons (CFCs)

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  2. Frost forms when:

    3. A.

     Objects on the ground cool below the dew point temperature.
    B.

     The dew point is 32oF or below.
    C.

     Water vapor changes into ice without first becoming a liquid.
    D.

     All of the above

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  3. A narrow valley with steep sides is known as

    4. A.

     Gorge
    B.

     Canyon
    C.

     Waterfall
    D.

     Landslide

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  4. The temperature to which air must be cooled in order to become saturated is the:

    5. A.

     Minimum temperature
    B.

     Dew point temperature
    C.

     Wet-bulb temperature
    D.

     Freezing point

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  5. The lowest temperature that can be attained by evaporating water into the air is known as the:

    6. A.

     Heat index
    B.

     Minimum temperature
    C.

     Wet-bulb temperature
    D.

     Frost point
    E.

     Wind chill temperature

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  6. _________ is a source of all minerals.

    7. A.

     air
    B.

     water
    C.

     wildlife
    D.

     soil

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  7. _________ energy is the energy stored within the earth.

    8. A.

     Geothermal
    B.

     Mechanical
    C.

     Wind
    D.

     Thermal

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  8. The largest brackish water lake situated in Asia is in Orissa. Which is the lake?

    9. A.

     Chilka lake
    B.

     Vembanad lake
    C.

     Woolar lake
    D.

     Dal lake

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  9. IUCN is also called as

    10. A.

     Man and Biosphere program
    B.

     World Conservation Union
    C.

     World Conservation Consortium
    D.

     World Wide Conservation Union

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  10. 5th June is observed as

    11. A.

     World forest day
    B.

     World environment day
    C.

     World wildlife day
    D.

     World population day

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