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The ionosphere is

Used to send radio singles
The coldest layer in the atmosphere
Made of charged atoms called ions
Responsible for earth’s weather

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6 votes

Answer:

the layer of the earth's atmosphere that contains a high concentration of ions and free electrons and is able to reflect radio waves. It lies above the mesosphere and extends from about 50 to 600 miles above the earth's surface.

Step-by-step explanation:

User Rsan
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The first two your welcome

User Justin Noel
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