What Was Sarah Like?

Do a page in your character notebook for Sarah.
Sarah was an active woman who laughed in disbelief, believed the impossible, and then laughed in happiness.
Sarah appears to have been a peppery, lively, animated, practical, and strong-willed woman. See Genesis 21:10 and Genesis 16:6. Can a person like that be used by God? List her character traits with examples from her life to prove your point.
Why was Sarah able to believe God for the impossible?