Unit-11 Vocabulary

a large mass of ice that moves slowly down a valley

a surface or piece of land that goes up or down

a line of mountains or hills

a high area of land that is not as high as a mountain

the pointed top of a mountain

one of a series of steps that are cut into the side of a hill so that crops can be grown there

the height of sth above sea level

successfully producing the result that you want

the low land between two mountains or hills, which often has a river flowing through it

the processes by which water passes between the earth's atmosphere, land and oceans, involving water falling from clouds as rain and snow, flowing in streams and rivers to the sea, and then returning to the atmosphere through evaporation and forming clouds again