Chapter 5/6 test review

over thousands of years, _________ can break down rock into smaller pieces known as sediment

• erosion

• weathering

• deposition

• oxidation

All of the following cause mechanical weathering EXCEPT

• ice wedging

• plants and animals

• abrasion

• oxidation

Ice wedging occurs when

• carbonic acid freezing on rocks

• water and oxygen reacting

• water freezing and thawing

• rocks colliding with one another

which is a cause of chemical weathering

• water

• oxidation

• acids from pollution or volcanoes

• all of the above

mechanical weathering occurs quicker in places that have

• very little temperature change

• frequent temperature change

when you dig a deep hole, you see the color and content of the soil change. What are the layers of change called?

• horizons

• vistas

• panoramas

• conglomerations

The starting material of soil is

• topography

• climate

• biota

• parent material

What are the three types of soil?

• Sand, silt, sedimentary soil

• clay,silt,dirt

• sand, silt, clay

• sand, mineral dust, clay

The top, organic layer of soil is

• A- horizon

• B- horizon

• O-horizon

• R-horizon

Agents of erosion include

• water

• gravity

• wind

• all of the above