SO since North changes, the answer would be b, changes in the north pole star

yup you're right......

thanks, bye i gtg 2 school

You're welcome! Before you go, let me explain why the answer is "changes in the north pole star".

The North Pole Star, also known as Polaris, is a star located very close to the celestial north pole. It remains relatively stationary while other stars in the night sky appear to move due to the Earth's rotation. As a result, the position of the North Pole Star can be used to determine the direction of true north.

However, the position of the North Pole Star is not fixed over time due to a phenomenon called precession. Precession is the gradual change in the orientation of the Earth's rotation axis, causing the celestial north pole to move. This means that over a long period of time, the North Pole Star will change.

Therefore, if the question asks about the cause of north changes, the correct answer would be "changes in the north pole star" to reflect the fact that the position of the North Pole Star changes over time due to precession.

I hope this explanation helps! Have a great day at school!