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extra mucus that forms in the lungs during a cold and with some respiratory disease has an effect on the function of the lungs. to explore this, add a spoonful of water to the small balloons, push and pull on the big balloon and observe what happens. how does the addition of water affect the ability of the lungs to function properly? how does the extra "mucus" affect the amount of air that can be inhaled?​

Sagot :