A) there is more oxygen at the mountains
B) there is less oxygen at mountains
C) more heat is required to be produced in the body for keeping warm
D) there are no germs in the air in mountain
Correct Answer: B
Solution :
At higher altitudes partial pressure of oxygen in air is less, so to facilitate rapid gaseous exchange, the number of RBCs increases.You need to login to perform this action.
You will be redirected in
3 sec