<span>When an individual is more than a couple of meters underwater, the air pressure in the lungs is greater than the air pressure at the waters surface. If a snorkel were used, it would move the air from the lungs to the surface, making it very difficult to breath
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<span>More than 80 percent of adults do not meet the guidelines for both aerobic and muscle strengthening activities found in Healthy People 2020.</span>
Answer:
My best thing is athleticism.
Explanation:
Plzz mark brainiest because im in a war to get most and right now were tied if you give me it i will win.
The answer is the thoracic cavity
