SOIL

WHICH IS THE TOPMOST LAYER OF EARTH

WHAT DOES SOIL CONSIST OF

• HUMUS

• ORGANIC MATTER

• DEAD REMAINS OF PLANTS AND ANIMALS

• ALL OF THESE

SOIL SCIENTISTS HAVE IDENTIFIED OVER ______________ DIFFERENT SOILS IN EUROPE 

THE CONTINUOUS PROCESS OF FORMATION OF SOIL IS CALLED

THE REMAINS OF DEAD PLANTS AND ANIMALS FORM AN ORGANIC MATTER KNOWN AS

• TOPSOIL

• HUMUS

• SUBSOIL

• CRUST

THE VERTICAL SECTION OF THE SOIL SHOWING THE LAYERS FROM TOP TO THE BOTTOM IS CALLED ________________

FILL IN THE BLANKS-

HORIZON A- __________________

HORIZON B- __________________

HORIZON C- __________________

• HORIZON A- SUBSOIL

  HORIZON B- BEDROCK

  HORIZON C- TOPSOIL

• HORIZON A- TOPSOIL

  HORIZON B- SUBSOIL

  HORIZON C- BEDROCK

• HORIZON A- BEDROCK

  HORIZON B- TOPSOIL

  HORIZON C- SUBSOIL

HORIZON B CONSISTS OF ______________________

• HUMUS AND ORGANIC MATTER

• LARGE ROCK PIECES

• SMALL QUANTITIES OF ORGANIC MATTER

WHEN THE FERTILE TOPSOIL IS CARRIED AWAY DUE TO WIND AND WATER IT IS CALLED ________________ AND RESULTS IN ______________

• SOIL EROSION,REDUCTION IN THE CROP YIELD

• SOIL CONSERVATION,GROWTH IN THE CROP YIELD

THE MAXIMUM AMOUNT OF SOIL EROSION IS CAUSED BY _______________