The answer is going to be 90%.
No, it's because we need to breathe. Your body needs oxygen. Air pressure has little to nothing to do with it as far as I know.
Answer:
slow-twitch muscle fibers
Explanation:
Marathons, ultra-running, and longer course triathlon pulls in mostly slow-twitch muscle fibers. “Type I, slow-twitch muscle fibers, are also known as aerobic muscle fibers due to their ability to create energy from oxygen, allowing them to produce force over an extended period of time
I'm pretty sure you can do it on both but a child would be safer to do cpr on to me because, on an infant their insides are still really fragile so you don't wanna press to hard :)
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Answer:
Trueeeeee!!!!!! pls mark me brainliest
Explanation: