vocabulary 15 Lift, carry and drope

Mass wasting   the downhill movement of earth material causad by gravity .

Deposition   droping off of  sediment .

Glacier   a huge sheet of ice and snow that moves slowly over the land .

Till   a jumble of many sizes of sediment deposited by a glacier .

Moraine   a deposite of many sizes  of sediment infront or along the sides of a glacier .