Soil

THIS HORIZON IS MADE OF DECAYING LEAVES, TWIGS AND ANIMAL REMAINS/WASTES......

• A
• B
• C
• O

SOIL LAYERS ARE CALLED.......

• MATERIALS
• ORGANIC
• HUMUS
• HORIZONS

RICH IN MINERALS, SUCH AS IRON AND ALUMINUM.......

• O
• A
• B
• D

SLIGHTLY BROKEN UP PARENT ROCK.....

• C
• D
• O
• A

THIS HORIZON IS RICH IN MINERALS (CLAY)....

• B
• O
• D
• A

THE SOIL HORIZONS FROM TOP OF GROUND DOWN ARE.....

• A   B   C   D   O
• O   A   C   B   D
• O   A   B   C   D   
• O   D   C   B   A

What is the name of Horizon 4?

• Subsoil 
• Topsoil
• Bedrock 
• Parent Rock

What is the name of Horizon 1?

• Subsoil 
• Topsoil
• Bedrock 
• Parent Rock

Decayed organic material in soil is called______.

• Litter
• Silt
• Humus
• Clay

Soil formation begins with the weathering of_______.

• Humas
• Subsoil
• Litter
• Rock