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  1. (b) Kidneys are soft organs and have no cartilage. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

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  2. (d) Apical meristem is present at the apex of branches and main stem. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

    (d) Apical meristem is present at the apex of branches and main stem.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

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  3. (a) Cork cells are made impervious to water and gases due to the presence of suberin. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

    (a) Cork cells are made impervious to water and gases due to the presence of suberin.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

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  4. (b) Commercial fibers like jute and flax are derived from the collenchyma tissue, which provides mechanical support and flexibility to plants. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

    (b) Commercial fibers like jute and flax are derived from the collenchyma tissue, which provides mechanical support and flexibility to plants.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

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  5. Bicycles face issues like rusting, loose parts, stiff wheels, and flat tyres. Rust can be cleaned using sandpaper and oil. Loose parts should be tightened with appropriate tools. Wheels that don’t move freely require lubrication. Flat tyres need regular air pressure checks and proper inflation. ReguRead more

    Bicycles face issues like rusting, loose parts, stiff wheels, and flat tyres. Rust can be cleaned using sandpaper and oil. Loose parts should be tightened with appropriate tools. Wheels that don’t move freely require lubrication. Flat tyres need regular air pressure checks and proper inflation. Regular maintenance, cleaning, and lubrication can prevent these problems, ensuring smooth and efficient performance.

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