Answer: stable
Explanation: An imaginary body of air to which may be assigned any or all of the basic dynamic and thermodynamic properties of atmospheric air and If an air parcel is given a small push upward and it falls back to its original position, the atmosphere is said to be stable. furthermore, The value of the environmental lapse rate is one of the main factors that determines whether the atmosphere will be stable or unstable. Warming the air above the ground and/or cooling the air next to the ground will make the atmosphere more stable.
