Assertion :At high altitude a person, from plain areas, may experience altitude sickness. Reason: At high altitudes atmospheric pressure is generally high leading to symptoms like nausea, fatigue etc.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
At high altitudes like over mountains, the oxygen in air decreases. As a result, a person suffers from altitude sickness and develops symptoms like nausea, vomiting, hyperventilation, exhaustion, etc. Thus, the assertion is true but its reason is false.
So, option C is the correct answer.

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