FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Glass, water, and minerals.
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Metals, minerals, and rocks.
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Rock, minerals, air, water and decayed matter.
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None of the above
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Detailed explanation-1: -Soil is a mixture of rock, mineral fragments, organic matter, water, and air that sits just below Earth’s surface. Weathering and erosion are natural earth processes that contribute to soil formation. There are five main factors that create soil: parent material, climate, biology, topography, and time.
Detailed explanation-2: -Soil is formed of fine rock particles mixed with air, water and particles from dead plant and animal matter.
Detailed explanation-3: -The solid crust or the hard top layer of the earth is called the lithosphere. It consists of rocks, minerals and a thin layer of soil.
Detailed explanation-4: -Soil is a material composed of five ingredients-minerals, soil organic matter, living organisms, gas, and water. 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. The mineralogy of soils is diverse.