What is the “fuel” used to generate electricity in the power plant ?
a. air and water vapor
b. coal
c. solar energy
d. water and steam heated by earths internal heat

D) Water and steam heated by earths internal heat

Explanation:

Geothermal energy

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.