Environmental Science
Infrared and visible satellite images might provide:

A way of distinguishing between "new" and "old" clouds.
A way of determining cloud thickness and altitude.
A way of distinguishing between wet and dry clouds.
A way of identifying clouds suitable for cloud seeding.

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Environmental Science
The order of basic processes involved in succession is

Nudation->stabilization-> competition and co action->Invasion>reaction
Invasion-> Nudation->competition and co action->Reaction>stabilization
Invasion->stabilization-> competition and co action->Reaction>nudation
Nudation->Invasion-> competition and co action->reaction>stabilization

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