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11.
which one of the following is an appropriate description of mangrove plants ?
  • A.
    Large wood-yielding trees of the tropical forests
  • B.
    Red sandalwood plants
  • C.
    Plants in marshy areas with breathing roots
  • D.
    Medicinal plants
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Answer : [C]
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12.
Which of the following possesses chlorophyll ?
  • A.
    Bacteria
  • C.
    Fungi
  • B.
    Algae
  • D.
    Mushrooms
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Answer : [B]
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13.
The red colour of ripe tomatoes is due to the presence of
  • A.
    chlorophyll
  • C.
    Vitamins
  • B.
    Carotenoids
  • D.
    Hormones
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Answer : [B]
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14.
The cross-section of the trunk of a tree showed fifty rings. What is the age of the tree ?
  • A.
    50 months
  • C.
    25 years
  • B.
    5 years
  • D.
    50 years
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Answer : [D]
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15.
Which one of the following plants does bear no fruits but produces seeds ?
  • A.
    Groundnut
  • C.
    Cycas
  • B.
    Sugarcane
  • D.
    Almond
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Answer : [C]
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