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Q: A level of atmosphere which is composed partly of electrons and positive ions is called
  • A. Troposphere
  • B. Ionosphere
  • C. Stratosphere
  • D. Mesosphere
Correct Answer: Option B - The ionosphere has been made up of mixture of partly of electrons and positive ions. Above the stratosphere a zone lies which is composed of the layers made up of electrons and positive ions. and here in this zone the electromagnetic waves are reflected back to the earth. The polar light also comes to right in this region. The ionosphere is also known as thermosphere. Ionosphere also overlaps two layer of atmosphere i.e. Exosphere and Thermosphere. The exosphere has abundance amount of hydrogen & helium.
B. The ionosphere has been made up of mixture of partly of electrons and positive ions. Above the stratosphere a zone lies which is composed of the layers made up of electrons and positive ions. and here in this zone the electromagnetic waves are reflected back to the earth. The polar light also comes to right in this region. The ionosphere is also known as thermosphere. Ionosphere also overlaps two layer of atmosphere i.e. Exosphere and Thermosphere. The exosphere has abundance amount of hydrogen & helium.

Explanations:

The ionosphere has been made up of mixture of partly of electrons and positive ions. Above the stratosphere a zone lies which is composed of the layers made up of electrons and positive ions. and here in this zone the electromagnetic waves are reflected back to the earth. The polar light also comes to right in this region. The ionosphere is also known as thermosphere. Ionosphere also overlaps two layer of atmosphere i.e. Exosphere and Thermosphere. The exosphere has abundance amount of hydrogen & helium.