Multiple choice

The pole star is always seen at one point in the sky whereas other stars are not. This is because the

  1. pole star rotates with the same speed as the earth

  2. pole star is a star of our own galaxy

  3. sun and pole star in two opposite directions relative to earth

  4. pole star lies in the axis of spin of the earth
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D Correct answer
Explanation

The pole star (Polaris) appears stationary because it aligns almost exactly with Earth's rotational axis in the northern sky. As Earth rotates, all other stars appear to move in circular paths around this fixed point. The pole star itself does not rotate with Earth or have special positional relationships with the Sun.

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