Soil Horizon Quiz

SOIL LAYERS ARE CALLED.......

• MATERIALS
• ORGANIC
• HUMUS
• HORIZONS

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

• A
• B
• C
• O

SLIGHTLY BROKEN UP ROCK IS FOUND IN HORIZON.....

• C

• D

• O

• A

WHAT IS HORIZON R ALSO CALLED.......

• HUMUS

• BEDROCK

• ORGANIC MATTER

• INORGANIC MATTER

WHAT LAYER IS TOPSOIL FOUND IN........

• A
• B
• C
• D

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

• A B C R O

• O A C B D

• O A B C R

• O A C B D

Which type of soil can hold the greatest amount of water?

• sand
• silt
• clay
• loam

Water gets into the cracks of rock and freezes, causing the rock to break.  What is this an example of?

• erosion
• weathering

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Which of the following is NOT one of the three layers of soil?

• topsoil
• undersoil
• subsoil
• bedrock