Question

If axis of rotation of the earth were extended into space then it would pass close to
A. The moon
B. The sun
C. The pole star
D. The center of mass of all the planets in the solar system

Answer 1

Hint:To solve this question we have to know about the earth’s rotation in detail. We know that, Earth's rotation or Earth's twist is the revolution of planet Earth around its own pivot, just as changes in the direction of the pivot hub in space. Earth pivots toward the east, in prograde movement. As seen from the North Pole star Polaris, Earth turns counterclockwise.

Complete answer:
We know that a pole star is a visible star, which lies approximately directly overhead when viewed from earth’s North Pole or South Pole. In practice the term pole star usually refers to polar, which is the current northern pole star, also known as North Star.

We can say, the south celestial pole lacks a bright star like polarization to mark its position. We can also say it like this, that, pole star is a visible star preferably a prominent one that is approximately aligned with the axis of rotation of earth.

Hence, the correct answer is option C.

Note: We also have to know that the earth’s North Pole, otherwise called the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's pivot of turn meets its surface. This point is particular from Earth's North Magnetic Pole. The South Pole is the other point where Earth's hub of pivot crosses its surface, in Antarctica. So, this information will help the students to solve more questions.