Erosion and Deposition

The energy that produces ocean waves comes from

• the rise and fall of the tides.

• rivers flowing into the ocean.

• wind blowing across the water’s surface.

• rock falling into the ocean along the shore.

The process in which rock fragments freeze to the bottom of a glacier and then are carried away when the glacier moves is called

• plucking

• surging

• valley widening

• abrasion

A ridge of till located at the farthest point reached by a glacier is called a

• horn

• fiord

• terminal moraine

• drumlin

After the last ice age, stranded ice blocks left behind by the continental glacier melted and formed

• kettles

• cirques

• drumlins

• moraines

Delats are built up by

• deposition

• leaching

• abrasion

• erosion

Water erosion begins when runoff from rainfall flows in a thin layer over the land in a kind of erosion called

• mass erosion

• sheet erosion

• creep

• gullying

A river flowing across a wide flood plain begins to form looplike bends called

• rills

• meanders

• outside curves

• deltas

In deserts, deflation can sometimes create an area of rock fragments called a

• sand dune

• loess deposit

• desert pavement

• sand bar

Particles of clay and silt eroded and deposited by the wind are called

• till

• loess

• dust

• sod

Wind carrying sand grains deposits the sand when the wind

• speeds up

• crosses a depression in the ground.

• slows down or hits an obstacle.

• cools after nightfall.