" At high altitude,RBC's of human blood will "

At high altitude, RBCs of human blood will

At high altitude , RBC of human blood will

At high altitude, the RBCs in human blood

At high altitude the RBCs in the human blood will

At high altitude the RBCs in the human blood will

Assertion : It is difficult to stop bleeding from a cut in the body at high altitudes. Reason : The atmospheric pressure at high altitude is lesser than the blood pressure.