What term describes bringing water into contact with air?

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Multiple Choice

What term describes bringing water into contact with air?

Explanation:
Aeration is exposing water to air to transfer oxygen and to release dissolved gases. This is the process described by bringing water into contact with air, commonly used in water treatment to boost dissolved oxygen, remove odors, and promote oxidation of certain contaminants. The other terms don’t involve direct air contact: filtration removes suspended solids by passing water through a barrier; sedimentation lets particles settle under gravity; coagulation uses chemicals to destabilize and clump particles for easier removal.

Aeration is exposing water to air to transfer oxygen and to release dissolved gases. This is the process described by bringing water into contact with air, commonly used in water treatment to boost dissolved oxygen, remove odors, and promote oxidation of certain contaminants. The other terms don’t involve direct air contact: filtration removes suspended solids by passing water through a barrier; sedimentation lets particles settle under gravity; coagulation uses chemicals to destabilize and clump particles for easier removal.

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