. An aircraft air-cooled piston engine is a good example of convection being used to transfer heat. An aircraft air-cooled piston the engine is a good example of convection being used to transfer heat

your answer would be a, maximum exploitation of resources.

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.