Where would you be if the polaris is seen at the zenith?

If you joined Santa last Christmas at the north pole (90 degrees latitude), you would have seen Polaris straight overhead and the celestial equator on your horizon. The point straight overhead on the celestial sphere for any observer is called the zenith and is always 90 degrees from the horizon.

So the answer is the North Pole.

what events in mexico's history might explain why the country continues to have difficulty improving social justice and economic opportunities for all people?