Why is the ionosphere often called an upper region rather than only a separate layer?
Answer and explanation
Correct answer: Because it is linked with ionized particles at several heights
The governing concept is that the ionosphere is defined by ionisation rather than by one sharply bounded altitude band. Solar ultraviolet and X-ray radiation remove electrons from atmospheric atoms and molecules across several overlapping upper-atmosphere regions. This is why the ionosphere may overlap parts of the mesosphere and thermosphere and support radio-wave behaviour. It is not oceanic, below the troposphere, or made of soil, so option B is correct.
Frequently asked questions
What is the correct answer to this question?
Because it is linked with ionized particles at several heights
Why is this the correct answer?
The governing concept is that the ionosphere is defined by ionisation rather than by one sharply bounded altitude band. Solar ultraviolet and X-ray radiation remove electrons from atmospheric atoms and molecules across several overlapping upper-atmosphere regions. This is why the ionosphere may overlap parts of the mesosphere and thermosphere and support radio-wave behaviour. It is not oceanic, below the troposphere, or made of soil, so option B is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting. Topic: Covers GAAP.
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