help i am having trouble with these:

The three branches and three systems of geology.

According to the Nebular Theory, how did the solar system develop? How is uniformitarianism related to the evolution of Earth and the solar system?
i know its in my reading but i cant find them someone please help me

Why can't you find them?

Have you printed this information? I always can read printed material more carefully than trying to read it on my computer monitor.