Temperature falls from lower to higher altitudes, and mountain climbers come to brave the altitude and scale the peaks. Given these facts, where would temperature be the lowest among the following options:
- At the base of a mountain
 - the Earth being tilted
 - In the winter
 - Earth orbiting the Sun
 - Under 32 degrees
 - At sea level
 - Halfway up a mountain
 - At the peak of a mountain


 

        At the peak of a mountain 