FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yes
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No
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Maybe
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None of the above
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Detailed explanation-1: -Water is stored and redistributed within soil in response to differences in potential energy. A potential energy gradient dictates soil moisture redistribution and losses, where water moves from areas of high-to low-potential energy (Hillel 1982).
Detailed explanation-2: -Roughly speaking for agriculture (top layer soil), soil is 25% water, 25% air, 45% mineral, 5% other; water varies widely from about 1% to 90% due to several retention and drainage properties of a given soil.
Detailed explanation-3: -About half of the total mass of soil is made of up vast, interconnecting cavities, or holes. These holes are filled with both air and water. The amount of air and the amount of water filling these spaces varies dramatically throughout the year and from location to location but averages about 50% each.
Detailed explanation-4: -Soil contains air, water, minerals, and organic matter. Moisture is nothing but the presence of water in the soil.