Environmental Science
The main reason why vegetables take longer to cook in boiling water at high altitudes is because:

There is less oxygen in the air at high altitude
The temperature of the boiling water decreases with increasing altitude
Water boils at a higher temperature with higher altitude
Saturation vapor pressure decreases with increasing altitude

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Environmental Science
Infrared and visible satellite images might provide:

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

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