HILL AREA:an area of land that is higher than the land surrounding it but smaller and lower than a mountain....
plane are large area of level or nearly level land. Elevated plains are called plateaus
, or tablelands, and very low, wet plains are calledswamps
. Plains have different names in different climates and countries. They include the tundras
, floodplains of rivers, coastal plains, loess plains, arid plains (see desert)
, and lacustrine plains.