Question

Write the difference between pure and impure blood.

Answer 1

Answer:

Blood that is rich in oxygen is called pure blood and the blood that is rich in carbon dioxide is called impure blood. ... Blood that comes to heart from all other body organs has comparatively larger amounts of carbon dioxide is called impure blood.

Answer 2

Answer :

impure blood is the blood coming to kidneys for purification and pure blood is the blood returning from kidneys after purification.