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SS1: AGRICULTURAL SCIENCE - 2ND TERM

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  1. Agro-Allied Industries and Relationship between Agriculture and Industry | Week 1
    2 Topics
    |
    1 Quiz
  2. Environmental Factors Affecting Agricultural Production | Week 2
    5 Topics
    |
    1 Quiz
  3. Rock Formation | Week 3
    6 Topics
    |
    1 Quiz
  4. Soil Formation and Profile Development | Week 4
    3 Topics
    |
    1 Quiz
  5. Types, Composition and Properties of Soil | Week 5
    10 Topics
    |
    1 Quiz
  6. Simple Farm Tools: Uses and Maintenance | Week 6
    2 Topics
    |
    1 Quiz
  7. Farm Machines and Implements | Week 7
    6 Topics
    |
    1 Quiz



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Topic Content:

  • Processes of Soil Formation
    • Physical process
    • Chemical process
    • Biological process

Processes of Soil Formation:

The process of soil formation is called weathering.

Weathering is defined as the disintegration or breakdown of rocks into tiny pieces to form soil.

The processes of soil formation are:

  1. Physical process
  2. Chemical process
  3. Biological process

1. Physical Process:

Agents of physical weathering are temperature, ice, wind, water and pressure.

  • Temperature: The alternating heating and cooling of the rocks produce pressure within the rock and cause them to break down into pieces.

 

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