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.
Valley glaciers form several unique features through erosion. You can see some of them in Figure below and at this link: [Insert a link to a video that shows features eroded by valley glaciers.] As a valley glacier flows through a V-shaped river valley, it scrapes away the sides of the valley.