A pierced lip is a sore that is open making it easier for infections to set in. Touch as less as possible and when you touch make sure your hands are clean. Most workplaces do not approve of piercing do take that into consideration while getting it done. Do be careful when you eat.
A V-shaped valley forms through a geological process called erosional downcutting in which a strong and fast moving river or stream erodes or cuts a path through rock. A V-shaped valley may also be referred to as a river valley.
Often at the mouth, a delta forms. A delta is a landform that forms at the mouth of a river because the river carries sediment along with the water as the river flows through its banks. The river water deposits this sediment together when it flows into the larger body of water and forms land. A delta is often shaped like a triangle.