1.

Regarding assertion and reason, choose the correct option_______. Assertion [A]: Cold air causes vasodilation of blood vessels in the nasal cavity. Reason [R]: Oxygen can be absorbed by widened blood vessels.

Answer»

Regarding assertion and reason, choose the correct option_______.
Assertion [A]: Cold air causes vasodilation of blood vessels in the nasal cavity.

Reason [R]: Oxygen can be absorbed by widened blood vessels.




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