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Question

The elctrical conductivity of earth;s atmosphere decreases with altitude.
The high energy particles (i.e, y rays and cosmic ray) coming from other space and entering our earth's atmosphere cause ionisation of the atoms of the gases present there and the pressure of gases decreases with increase in altitude.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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E
If assertion is false but reason is true
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Solution

The correct option is E If assertion is false but reason is true
The electrical conductivity of earth's atmosphere increase with height so assertion is false.
When high energy particles enters in earth's atmosphere. They ionises the gases present in atmosphere. Also as we go up, the air times gradually and their pressure decreases.

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