Related Questions. When we talk about the percentage of water absorbed by the soil, it means the mass of water absorbed by 100 g of soil. Answer. some absorb more water while other absorbs less water. Poor soil drainage, wetness, a high water table, and overflow are the factors that affect soils in this subclass.. Subclass s. is made up of soils that have soil limitations within the rooting zone, such as shallowness of The term water retention signifies an abnormal accumulation of fluid in the circulatory system or within the tissues or cavities of the body. Water retention capacity of the clayey soil is quite high. Soil and Crop. ASK A QUESTION . RELATED ASSESSMENTS. Soil Class 7 MCQs Questions with Answers. A healthy, thriving garden starts with good soil, one that is best-suited for the type … Your soil’s water retention ability will depend on the type of soil in question, as well as the nature of any amendments you might have added to the soil. Hence, clayey soil useful for crops (such as wheat). Soil plays an important role in the existence of life on earth. (5) Soil is used to make earthenware or pottery (such as matkas, surahis, etc. Water Retention The ability of soil to hold water is called water retention. On the other hand, sandy soil absorbs the least amount of water because of its lower water retention capacity. The process by which huge rocks are broken down into small particles by the action of sun’s heat, wind, rain and flowing river water, etc, is called weathering. Answer: (d) All are involved in the formation of soil Clayey soil absorbs the highest amount of water because of its higher water retention capacity. Under physical classification soil water is grouped into three on the basis of retention: gravitational, capillary and hygroscopic water. Also, clayey soil is rich in humus and is very fertile. Which Soil Retains Water Best: Clay, Loam, Silt or Sand?. ), crockery (cups and plates), toys and statues, etc. Choose the correct answer: Question 1. Different types of soil are found are found at different places. Different types of soil can absorb water to a different extent, i.e. The organic matter formed by the dec omposition of dead plants and … Water retention ability, also called soil water retention rate, is a measure of how much water a particular type of soil or grow medium can retain. Subclass w is made up of soils for which excess water is the dominant hazard or limitation affecting their use. (a) Earthquakes or volcanic eruptions (b) Weathering of rocks (c) Addition of humus (d) All are involved in the formation of soil. Which one of the following is a step in the formation of soil? NCERT Solutions for Class 7 Science Chapter 9– Soil – Definition of the Keywords-Clayey, Humus, Loamy, Percolation, Moisture, Sandy and Water retention. 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