4th Class Science Plants Question Bank Plants

  • question_answer 19) Study the given flow chart showing three types of water plant. Some of their features are given below. Select the correct match of the water plants with their respective features.
     
     
    Features:
    (i) They have narrow thin leaves with no stomata.
    (ii) Their bodies are like a sponge and have empty spaces filled with air.
    (iii) They have plate-like leaves which have stomata on the upper side.
     

    A) X - (i), Y - (iii)

    B) Y - (ii), Z - (i)

    C) X - (iii), Z - (ii)

    D) X - (ii), Y - (iii), Z - (i)

    Correct Answer: D

    Solution :

    Feature (i) describes a fully submerged plants (e.g., Hydrilla), which possess narrow, thin leaves with no stomata. Feature (ii) describes free floating plants (e.g., Eichhornia), which possess spongy parts filled with air. Feature (iii) describes floating leaved plants (e.g., Lotus) which possess plate like floating leaves having stomata on the upper surface.

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