Question

what is emission....​

Answer 1

Answer:

An emission is something that's been released or emitted into the world. Technically, an emission is anything that's been released out into the open. But more often it refers to gases being released into the air, like greenhouse gasses or emissions from power plants and factories.

Explanation:

Hope this answer helps you!

Answer 2

Answer:

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Explanation:

The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state.