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.
Meanders (plural) are formed when a river enters a flat plain. as it slows down. more sediment is dropped at the slow inner edge of a bend, and the faster water at the edge of a bend undermines the bank. Thus the river bends more. eventually the narrow bit at the neck breaks through creating an oxbow lake.