The Dry Adiabatic Rate of Change for Unsaturated Air Is

Multiple Choice

The Dry Adiabatic rate of change for unsaturated air is 10°C/1000 m.What does this mean?

A) Saturated air will not change.
B) Unsaturated air will get warmer or colder as it travels north or south.
C) Unsaturated air will get warmer or colder as it travels in any direction.
D) Unsaturated air will get warmer as it rises and colder as it sinks.
E) Unsaturated air will get warmer as it sinks and colder as it rises.