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Biology - section - 2
  1. Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?

    2. A.

     Chloroplast
    B.

     Stomata
    C.

     Chlorophyl
    D.

     Vacuole

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  2. The photosynthesis occurs in the

    3. A.

     Day
    B.

     Night
    C.

     Day and Night
    D.

     None of these

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  3. The oxygen released during photosynthesis process comes from

    4. A.

     H2O
    B.

     CO2
    C.

     NO2
    D.

     Glucose

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  4. In plants, photosynthesis mainly occurs in the

    5. A.

     Leaves
    B.

     Flowers
    C.

     Root
    D.

     Bark

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  5. Which one is important in photosynthesis to allows plants to absorb energy from light?

    6. A.

     Xanthophyll
    B.

     Carotene
    C.

     Chlorophyll
    D.

     Phaeophytin

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  6. Photosynthesis occurs in

    7. A.

     Nucleus
    B.

     Mitochondria
    C.

     Chloroplast
    D.

     Peroxisome

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  7. Sulphur Dioxide pollution is indicated by an excessive growth of which of the following?

    8. A.

     Algal Blooms
    B.

     Lichens
    C.

     Bryophytes
    D.

     Protozoa

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  8. Food wrapped in news paper is likely to get contaminated by

    9. A.

     Magnesium
    B.

     Alluminium
    C.

     Lead
    D.

     Copper

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  9. What is full form of BOD?

    10. A.

     Biological Oxygen Deficit
    B.

     Biological Oxygen Difference
    C.

     Biological Oxygen Demand
    D.

     Biological Oxygen Distribution

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  10. The non-biotic pollutant of underground water is

    11. A.

     Bacteria
    B.

     Algae
    C.

     Arsenic
    D.

     Viruses

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