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Cambridge IGCSE Environmental Management practice

Paper 1 structured question: Soil composition

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Soil composition

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Paper 1Theory3 marks

Soil texture affects water retention and plant growth.

Description

Soil Particle Sizes

Soil contains mineral particles of different sizes: sand (largest), silt (medium), and clay (smallest).

  1. a

    Explain how the different sizes of mineral particles affect soil properties.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 1 structured question: Soil composition

Paper 1Theory2 marks

Description

Soil Components

Soil is made up of mineral particles, organic matter (including living organisms and decomposed remains), air, and water. Mineral particles vary in size and include sand, silt, and clay.

  1. a

    Describe the main components that make up soil.

    Aim for approximately 2 distinct marking points.

    [2]