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Human lungs have 300 million alveoli. This means that human lungs have a surface area equivalent to the area of a tennis court. Think about why the surface area of lungs is so large, and describe the effects
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Human lungs have 300 million alveoli. This means that human lungs have a surface area equivalent to the area of a tennis court. Think about why the surface area of lungs is so large, and describe the effects of pollutants on human lungs.

User CaptDaylight
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Due to the many surface walls of the alveoli, the lungs have a surface area that is approximately the size of a tennis court, this surface area allows rapid exchange of gases.
User Tomvon
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