D.Answer these questions.
1. What is the importance of soil? How can we say that soil contains water?
2. What is the importance of humus?
3. How can we say that air is present in soil?
4. Write the characteristics of A-horizon and B-horizon.
5. What is soil erosion? What are the factors that lead to soil erosion?
6. Why is loamy soil considered as the most fertile soil?
7. How can you calculate the rate of percolation of a soil sample?
8. A soil sample takes 45 min to percolate 900 mL of water. Find the rate of percolation of it.
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Answer:
1.The soil moisture content of soil is the quantity of water it contains. Water content is used in a wide range of scientific and technical areas and is expressed as a ratio, which can range from 0 (completely dry) to the value of the materials’ porosity at saturation.
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soil is majorly important for the lives of living orga ism i don't think life is possible without soil for human beings as well as plants and animals and soil contain water as the plants take out is for photosynthesis
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