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.

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.