During the formation of earth billions of years ago, it was very hot and most of the material was molten or fluid which allowed them to sink or float based on
density. Imagine the earth layers like a density column, which layer would be
most dense?

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.

ice cream

explanation: