Millionaire Mode

Human Respiratory System Physiology

Question 1 of 18

Number of red blood cells per unit volume of blood is likely to be higher in a person living at higher altitudes because at higher altitudes

  1. air is clean and unpolluted
  2. more sunlight is available
  3. air is less dense
  4. vegetation gives out more oxygen
  5. people need more oxygen

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000