Where does the water in rivers come from? What causes rivers to flow? (Site 1)

Where it comes from can depend on what river but generally from snow melt or rain fall in higher elevations.

the answer would be a." don't hit a home run when the game is tied"

well say a good goal is to do 150 sit ups in a week! or 90 pull ups a day. even 60 push ups in a month these are all fair goals!