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thermosphere
The outermost layer of the earth's atmosphere is the exosphere (about 500 to 200 km altitude). It is practically a vacuum. When listing only the four major layers, the exosphere is sometimes considered part of the thermosphere. (see related questions)
ionosphere
the exosphere is a layer in space and generally is not taken as one of the atmospheric layers whereas the ionosphere is a layer containing highly charged anions and is an upper part of the thermosphere.
Just a guess but maybe the exosphere!! But also it could be the Thermosphere, which is the Ionosphere and Exosphere combined.
The layer of the atmosphere that contains the ionosphere and exosphere is called the thermosphere. The exosphere is at the top and the ionosphere is at the bottom.
The thermosphere is divided into ionosphere and exosphere
thermosphere
The most upper layer of the atmosphere is the Exosphere. novanet> mesophere
this is just my hyothesis- but maybe either 1.) ionosphere 2.) exosphere 3.) thermosphere
The outermost layer of the earth's atmosphere is the exosphere (about 500 to 200 km altitude). It is practically a vacuum. When listing only the four major layers, the exosphere is sometimes considered part of the thermosphere. (see related questions)
ionosphere
The ionosphere is within this layer after which is the exosphere and the magnetic field.
This is primarily the ionosphere that contains the ions.
The two layers of the thermosphere are the Ionosphere and the Exosphere.
ionosphere
The thermosphere contains the ionosphere. The ionosphere is the layer that is ionized by the solor radiation.