1. Plants of particular region or period.   For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

    Plants of particular region or period.

     

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

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  2. Tropical evergreen forest.   For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

    Tropical evergreen forest.

     

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

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    • 11
  3. Timber ,rubber, medicine(cinchona)   For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

    Timber ,rubber, medicine(cinchona)
     

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

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  4. The system of interaction among biotic component and their interaction with abiotic component of a particular area is called Ecosystem. Eg. Pond ecosystem, river ecosystem, lake, forest, grassland etc.   For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/soRead more

    The system of interaction among biotic component and their interaction with abiotic component of a particular area is called Ecosystem. Eg. Pond ecosystem, river ecosystem, lake, forest, grassland etc.
     

    For more answers visit to website:
    https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

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    • 10