Question

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Answer 1

Answer:

1.Mitochondria is known as the power house of the cell.they are known so because they produce ATP, which is an energy dense molecule responsible for powering most cellular processes in the living organisms

Answer 2

Answer:

1. Mitochondria is known as power house of the cell because the formation of ATP occurs there which provides energy to whole body to do work.
2. (a) Newton's first law of motion is that force can change the shape and size of an object.

(b) It's due to Newton's third law. As each action has an equal and opposite reaction so when force is applied on carpet then the dust particles come out.

3.

1. Solid:-

• They have fixed shape.
• They have fixed volume.
• Intermolecular space is negligible.
• They don't show fluidity.
• There molecules are tightly packed.

Liquid :-

• They have no fixed shape.
• They have fixed volume.
• They contains intermolecular space.
• They show fluidity.
• There molecules are moderately packed.

Gases:-

• They have no fixed shape.
• They have no fixed volume.
• They contains high intermolecular space.
• They show fluidity.
• There molecules are very loosely packed.

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