Plains and rivers are different because rivers have water, fish, turtles, and sometimes alligators. They are similar since they both have land, birds, snakes, and more!
The river plain can also known as just plains that are formed with minimum elevation. Rivers plains mainly occurs along the bottoms of valleys, near mountains.In geography, a plain is a flat, sweeping landmass that generally does not change much in elevation. Plains occur as lowlands along valleys or on the doorsteps of mountains, as coastal plains, and as plateaus or uplands. A coastal plain is a piece of land that is lying low and adjacent to the sea coast.
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water.