Environmental Science
Infrared and visible satellite images might provide:

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

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Environmental Science
Definition of ecosystem is

The abiotic component of a habitat
The community of organisms together with the environment in which they live
A community of organisms interacting with one another
The part of the earth and its atmosphere which inhibits living organisms

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