Answer:
All of the above
Explanation:
The reason why "All of the above" would be the correct answer because the lungs do all of the answer choices.
The lungs main job in the body is to let in clean oxygen (when we inhale) and clean the body from carbon dioxide, and releasing that carbon dioxide (when we exhale). This is to ensure that our body is clean from CO2 and allows us to be taking in clean air to help our body function.
The lungs are also located in the chest. When you take a deep breath, your chest expands due to the fact that the lungs are located in the chest and needs more space in order to take in all the air.
The lungs are also protected by the rib cage. The lungs would be located behind the rib cage, so it's protective from anything that would hit or damage it.
I hope this helped you out.
Good luck on your academics.
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