List and explain several processes by which a stable atmosphere can be made unstable.?
What will be an ideal response?
ANSWER: ?The atmosphere becomes more unstable as the environmental lapse rate steepens; that is, as the air temperature drops rapidly with increasing height. This circumstance may be brought on by either air aloft becoming colder or the surface air becoming warmer. The cooling of the air aloft may be due to winds bringing in colder air (cold advection), and clouds (or the air) emitting infrared radiation to space (radiational cooling). The warming of the surface air may be due to daytime solar heating of the surface, an influx of warm air brought in by the wind (warm advection), or air moving over a warm surface.
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