I have 120 feet X 100' yard and my hose does not reach the far end. I want to build a Pipeline for 100 feet and put a facet at the middle and end of the yard. I Plan to water trees and shrubs

My questions are:

1) What is the Pipe material and Size?

2) Should I bury it (I live in GA and some time the ground freezes)

3) I know how to run the copper pipe inside the basement and bring it outside, but not sure how I do this outside in my yard

Thanks for your response