Altitude sickness,which includes nausea,fatig | vedclass

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Question

(B) Altitude sickness occurs because,at high altitudes,the atmospheric pressure is low. Due to this low pressure,the partial pressure of oxygen $(PO_2

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Low atmospheric pressure at high altitude

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(B) Altitude sickness occurs because,at high altitudes,the atmospheric pressure is low. Due to this low pressure,the partial pressure of oxygen $(PO_2)$ decreases,leading to hypoxia (lack of oxygen in the body tissues). The body compensates for this by increasing red blood cell production,increasing the breathing rate,and increasing the heart rate,which manifests as symptoms like nausea,fatigue,and heart palpitations.

Column $I$	Column $II$
$i$. Thick cuticle on leaf surface	$a$. Desert lizards
$ii$. Leaves reduced to spines	$b$. Archaebacteria
$iii$. Burrow into sand to escape from heat	$c$. Desert plants
$iv$. Hot springs	$d$. Opuntia

Altitude sickness,which includes nausea,fatigue,and heart palpitations,occurs due to:

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