What's your question?
  1. The chain and sprocket system plays a crucial role in bicycle movement. When the rider pedals, the chain moves over the sprockets, transferring energy to the rear wheel. This mechanism converts pedaling force into forward motion efficiently. Properly maintained chains and sprockets reduce friction,Read more

    The chain and sprocket system plays a crucial role in bicycle movement. When the rider pedals, the chain moves over the sprockets, transferring energy to the rear wheel. This mechanism converts pedaling force into forward motion efficiently. Properly maintained chains and sprockets reduce friction, enhance power transfer, and ensure smooth riding. Lubrication and regular cleaning help maintain durability and performance.

    See less
    • 7
  2. (d) We can move limbs according to our will (voluntarily). https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

    (d) We can move limbs according to our will (voluntarily).

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

    See less
    • 6
  3. (b) Tendon is a type of connective tissue which joins muscles to bones. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

    (b) Tendon is a type of connective tissue which joins muscles to bones.

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

    See less
    • 4
  4. (d) In bones osteocytes are found while in cartilage, chondrocytes are present. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/

    (d) In bones osteocytes are found while in cartilage, chondrocytes are present.

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

    See less
    • 5