Question

How does blood get oxygenated in the lungs?

Answer 1

see below...

Explanation:

When we inhale (breath in) the pressure inside the lungs decreases and the pressure outside the lungs increases so the air moves in.

proper answer:-

The air contains oxygen and other gases so the air goes into alveoli which are part of lungs and it has thin walls. The oxygen is diffused inside the blood and the blood becomes oxygenated.

Extra information:-

Then the oxygenated blood goes to all cells of the body and when all the oxygen is used up, it becomes deoxygenated blood and it goes back to the lungs to get oxygenated again.