Life on the Earth

  • Question 77
    CBSEENGE11011364

    Oxygen combines with iron found in the rocks to form:
    • iron carbonate
    • iron nitrites

       

    • iron oxides
    • iron sulphate

    Solution

    C.

    iron oxides
    Question 78
    CBSEENGE11011365

    During photosynthesis, carbon dioxide combines with water in the presence of sunlight to form :
    • proteins
    • amino acids

       

    • carbohydrates
    • vitamins

    Solution

    C.

    carbohydrates
    Question 79
    CBSEENGE11011366

    A zone of mixing of fresh and salt water is called __________.

    Solution
    Estuary
    Question 80
    CBSEENGE11011367

    Plants which are able to survive in dry regions are called __________.

    Solution
    Xerophytes

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