Geology studies the materials that make up the Earth and the Earth's structure. A. True
B. False

Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. ... By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth.

weathering is the answer.

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.