In Moscow, the air temperature is +20 degrees. Calculate the air temperature at 4000 meters.

To solve this problem, it should be remembered that the higher from the ground, the lower the air temperature becomes. With a rise for every 100 meters, the temperature decreases approximately by 0.6 ° С, which means by 6 ° С every 1 km. Thus, we can determine how the air temperature will change when it rises to an altitude of 4000 m, i.e. 4 km. To do this, do the following:

4 × 6 = 24 ° С – the air temperature will drop.

Consequently,

+20 + (-24) = -4 ° C.

This means that at an altitude of 4000m the temperature will be -4 ° С.