I can wait for my hernia to go away on its own. 1  True Sorry, that's wrong. 2  An umbilical hernia won't go away on its own. 3  Only surgery can repair it. 4  False You're right. 5  An umbilical hernia won't go away on its own.
The mouth of a river is another name for its terminus, where it meets an ocean, sea or lake. Because rivers generally carry abundant sediment and deposit it at the mouth, they often form deltas, or... The mouth of a river is another name for its terminus, where it meets an ocean, sea or lake.
A river that meets the sea or a large lake may form a delta at its mouth: a triangle-shaped area of sediment with distributaries flowing across it. The area of water around a river mouth where seawater mixes with freshwater is called an estuary. The land around a stream is a valley.Valleys come in all sizes and have a variety of names, just like streams. The smallest streams, rills, run in tiny channels also called rills.he bottom end is its mouth. In between, the stream flows through its main course or trunk. Streams gain their water through runoff, the combined input of water from the surface and subsurface. Most streams are tributaries, meaning that they drain into other streams.