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  1. The primary purpose of collecting data is to convey information. Data collection helps in analyzing trends, making informed decisions, and understanding patterns effectively. Click here for more: https://www.tiwariacademy.com/ncert-solutions/class-6/maths/

    The primary purpose of collecting data is to convey information. Data collection helps in analyzing trends, making informed decisions, and understanding patterns effectively.

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    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/

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  2. A bar graph represents data using bars of uniform width. The length or height of each bar corresponds to the value it represents, making it easy to compare different categories. Click here for more: https://www.tiwariacademy.com/ncert-solutions/class-6/maths/

    A bar graph represents data using bars of uniform width. The length or height of each bar corresponds to the value it represents, making it easy to compare different categories.

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    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/

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  3. (c) remains constant. It is accordance with the law of conservation of energy. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/

    (c) remains constant. It is accordance with the law of conservation of energy.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/

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  4. (d) When we lift a suitcase from the floor and keep it on a table, we do work against the weight of suitcase. The work done, being product of force and displacement, depends on the weight of the suitcase as well as on the height of the table from the floor. https://www.tiwariacademy.com/ncert-solutiRead more

    (d) When we lift a suitcase from the floor and keep it on a table, we do work against the weight of suitcase. The work done, being product of force and displacement, depends on the weight of the suitcase as well as on the height of the table from the floor.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/

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  5. (c) The speed of sound is more in solids, less in liquids and least in gases. Therefore, sound travel fastest in steel medium. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

    (c) The speed of sound is more in solids, less in liquids and least in gases. Therefore, sound travel fastest in steel medium.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

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