Question

1) A group of organs together make up an
) The process of making cotton yarn from cotton fiber is -40
A rock on the top of a hill is called
energy​

Answer 1

Ginning: The process of separating the seeds from fibres by combing is called ginning. These days ginning is done with the help of machines. Spinning: In spinning, fibres from a mass of cotton wool are drawn out and twisted. This brings the fibres together to make a strong yarn.

Gravitational Energy is the energy of position or place. A rock resting at the top of a hill contains gravitational potential energy. Hydropower, such as water in a reservoir behind a dam, is an example of gravitational potential energy.

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