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Crocodiles often float with their eyes just above water. They manipulate their buoyancy both by adjusting...

Crocodiles often float with their eyes just above water. They manipulate their buoyancy both by adjusting the volume of their lungs and by swallowing rocks (gastrolithes). A 120 kg crocodile swallows gastrolithes that are 0.8% of his mass to sink to a lower level. How much would it have to increase its lung volume in mL to counteract the sinking effect? Assume that the air pressure in its lungs is not much greater than atmospheric pressure.

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