Question

Define Filters?????????????​

Answer 1

Answer:

Air is the invisible mixture of gases that surrounds the Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

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Answer 2

Explanation:

A filter is a device used to remove unwanted parts from something. For example, removing solid particles from a liquid. Filter can also mean the act of filtering: it can be used as a verb. The different branches of science and technology often mean a particular kind of device when filter is mentioned.