The altitude of the North Star will not change from any point on Earth. However, the declination changes depending upon where you are and when - It is less than 90 degrees.
The boiling point depends on altitude (pressure). The effect on the melting point is not significant.
it depends on the altitude
The melting point of a substance does change with altitude. All due to atmospheric pressure, makes different elements behave differently.
Ambler's latitude is roughly 40.15° north, so when viewed from there, Polaris is always within about 1/3 degree of the point in the sky that's 40.15° above the due-north point on the horizon.
90 digrees north
Its a mystery
Yes, it does. It is do because with change in altitude their is change in temp. and pressure which also changes the melting point. The change in melting point could be small to large depending upon change in conditions at different altitudes.
Boiling point decrease at high altitude.
death valley ia the lowest point
Zero. (It's on the horizon.)
4409ft