What natural event causes sudden changes to the earth's surface?
a.
global warming
b.
solar flares
c.
earthquakes
d.
glaciers

gag reflex, poor dentition, gum retraction

have a good day

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.