Question

question 12
on average, for every 1 km of increase in altitude in the troposphere, a parcel of air will:
a cool about 6.5°c
b cool about 10°c
c warm by 6.5°c
d rise during the day and fall at night

Explanation:

In the troposphere, the environmental lapse - rate is approximately 6.5°C per kilometer increase in altitude. As air rises in the troposphere, it expands and cools.

Answer:

A. Cool about 6.5°C