How did altitude affect the freezing, melting, and boiling points of water

Altitude affect the freezing, melting, and boiling points of water because the melting/freezing and boiling points change with pressure and at higher altitudes the air pressure is lower. The Less energy means less heat, which means water will boil at a lower temperature at a higher altitude but, the freezing point in water will increase with altitude.

Explanation:

1. they vary with a higher number because boiling is way hotter than melting