The first molars are located toward the back of the mouth, next to the canine teeth. Most children cut their first molars before their canines, however, and after the lateral incisors. Toddlers on the later end of teething may not get their first molars until around 18 months old.
Or perhaps that's because so many other rivers in Oregon flow north: the Deschutes, the John Day, and the Hood. Even the Oregon portion of the Snake flows north. I do understand that in Cairo the word on the street is that, except for the Willamette, the Nile is the only river in the world that flows north.
The Nile flows generally north, from the highlands of east-central Africa into the Mediterranean Sea. Rivers (all of them) flow downhill. So the other answer is that the Nile flows downhill, which in the case of the Nile, happens to be from South to North - generally. It does meander along the way, so parts flow east, west, and any other direction - as long as it is downhill. Views.