What Is a River?

A liquid sauce made from meat or vegetable juices, often thickened with flour or other agents.

A large body of saltwater that covers most of the Earth.

The original point from which a river or stream flows; its point of origin.

Rivers and streams are formed from precipitation, other bodies of water, or melting snow and glaciers.

Rivers form rapids or waterfalls when flowing down steep slopes due to gravity and uneven terrain.

The process by which earth materials are worn away and transported by wind, water, or other natural agents.

A stream characterized by multiple channels that divide and rejoin, creating an interwoven pattern.

River valleys are formed over time as rivers erode the surrounding terrain, creating v-shaped valleys.

Fertile floodplains may be prone to flooding, posing risks to buildings.