PSES Ch. 12

vertical section through soil extending from surface to unweathered rock

• soil profile

• dirt

• soil horizon

• erosion

distinct layers of the profile

• columns

• horizons

• colors

• rows

top soil

• b horizon

• first horizon

• A horizon

• last horizon

organic matter

• A horizon

• R horizon

• top horizon

• O horizon

parent material for most soils is

• dirt

• carbon

• rock

• soil

3 primary types of rock are

• lava

• igneous

• sedimentary

• metamorphic

• all of the above

what type of rock is from water flowing and breaking it down

• igneous

• erosion

• metamorphic

• sedimentary

what type of rock has a volcanic source

• metamorphic

• sedimentary

• igneous

• volcanic

what type of rock is formed when heat and pressure is applied

• sedimentary

• core

• metamorphic

• igneous

A nutrient needed in large amounts

• Mircronutrient

• Macronutrient