#20 Erosion (Wind,Ice,Gravity) - Pd1

How do sand dunes move?

• Wind blows sand over the edge of the dune and drops it on the other side.

• Wind moves the entire sand dune at once.

• Wind blows the bottom part of the sand dune, and makes it move.

• Wind picks up the sand dune and drops it somewhere else.

Tags

NGSS.MS-ESS2-2

What is deflection?

• wind erosion that removes fine sediment

• wind erosion that removes surface rocks

• wind erosion that removes underground soil

• wind erosion that removes everything from the surface

Loess is a valuable resource.  What characteristic makes it so valuable?

• Loess is rich in minerals.
• Loess contains bits of rock.
• Loess does not erode easily.
• Loess is easy to find.

What is the process by which wind, water, ice or gravity transports or moves soil and sediment from one place to another?

• weathering
• deposition
• discharge
• erosion

Mounds of wind deposited sand are called ____________.

• creep
• dunes
• glaciers
• sandbars

Fine-grained sediment called ______ can be carried by wind over long distances.

• lahars
• creep
• loess
• desert pavement

An alpine/valley glacier generally forms in mountainous areas

• true
• false

Alpine/Valley glaciers generally carve sharp, rugged features

• true
• false

What is a bowl-shaped depression formed by glacial erosion?

• cirque
• arrete
• ice pack
• kettle

A sharp, jagged ridge formed by a glacier is called a(n)...

• arete

• cirque

• erratic

• drumlin