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7. State whether the following statements are true or false. Correct the statement if it is false (I)

1. The linear momentum of a system of particles is always conserved.

The linear momentum of a system of particles is always conserved.
The linear momentum of a system of particles is always not conserved

2. The apparent weight of a person is always equal to his actual weight.

The apparent weight of a person is always equal to his actual weight
The apparent weight of a person is not equal to his actual weight

3. Weight of a body is greater at the equator and less at the polar region.

Weight of a body is greater at the equator and less at the polar region
Weight of a body is higher at the poles than at the equatorial region

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