FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water
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Air
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Bedrock
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Minerals
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Organic Matter
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Detailed explanation-1: -Most soil organic matter originates from plant tissue. Plant residues contain 60-90 percent moisture. The remaining dry matter consists of carbon (C), oxygen, hydrogen (H) and small amounts of sulphur (S), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg).
Detailed explanation-2: -Organic soil is composed of a mix of weathered rock, water, air, and plant matter, a combination that improves drainage, deters pest infestations and provides optimal support for plant life.
Detailed explanation-3: -The soil organic matter encompasses the remains of plants, animals and microbes at various stages of decomposition, and the living component of soils. The latter consists of billions of microorganisms, plant roots, and larger soil life such as earthworms.
Detailed explanation-4: -45–55% carbon. 35–45% oxygen. 3–5% hydrogen. 1–4% nitrogen.