FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Soil is made up tiny pieces of rocks, air, fragments of plants, animals and ____
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Gas
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Water
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Plastic
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None of the above
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Explanation:
Detailed explanation-1: -Soil minerals are divided into three size classes-clay, silt, and sand (Figure 1); the percentages of particles in these size classes is called soil texture.
Detailed explanation-2: -Subsoil (B-horizon) : It is made up mostly of rock bits and some nutrients, such as soluble minerals and iron oxides. Parent rock (C-horizon) : It consists of small pieces of rocks with cracks and crevices. The particles of rocks found in soil come from the weathered rock in the C-horizon.
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