(a) What is soil composed of? [1 mark]
(b) What do you understand by soil profile? [1 mark]

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Solution

Soil is a mixture of minerals (rock particles), air, water, and organic matter (humus, living organisms, plant residue). [1 mark]

Soil profile is a vertical section through different layers of the soil. These layers are called horizons. [1 mark]

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(a) What is soil composed of? [1 mark] (b) What do you understand by soil profile? [1 mark]

Soil is a mixture of minerals (rock particles), air, water, and organic matter (humus, living organisms, plant residue). [1 mark] Soil profile is a vertical section through different layers of the soil. These layers are called horizons. [1 mark]

(a) What is soil composed of? [1 mark]
(b) What do you understand by soil profile? [1 mark]

Soil is a mixture of minerals (rock particles), air, water, and organic matter (humus, living organisms, plant residue). [1 mark]

Soil profile is a vertical section through different layers of the soil. These layers are called horizons. [1 mark]