FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -All soils contain mineral particles, organic matter, water and air. The combinations of these determine the soil’s properties – its texture, structure, porosity, chemistry and colour. Soil is made up of different-sized particles.
Detailed explanation-2: -Temperature and precipitation are the main factors making soils different from one another. Precipitation dissolves minerals and salts in the soil. These move with the water down through the soil profile. Climate and temperature also influences which plants and other organisms live in the soil.
Detailed explanation-3: -Physical properties of soil include colour, texture, structure, porosity, density, temperature, and air.
Detailed explanation-4: -Soils vary enormously in characteristics, but the size of the particles that make up a soil defines its gardening characteristics: Clay: less than 0.002mm. Silt: 0.002-0.05mm. Sand: 0.05-2mm.