Lag phase, exponential or log phase, stationary phase, death phase, and phase of prolonged decline.

When two air masses are not moving in relation to each other, it is referred to as a stationary front. This occurs when the forces that determine the movement of the air masses are in balance, resulting in little to no horizontal displacement. In a stationary front, the boundary between the air masses remains relatively stable, leading to prolonged periods of cloudy and potentially rainy weather.

No, the word prolonged is not an adverb.

The word prolonged is a verb.

The nearest adverb for the word "prolonged" is prolongedly.

The homophone for stationary is stationery.

stationary friction is when friction is happening on an object that is stationary.(STATIONARY MEANS STAYS STILL, OR NO MOVEMENT)