Soil Formation: How is Soil Formed [with Factors and Processes for Class 7, 8 ,9, 10]! Soil formation is a long slow process. It is estimated that an inch of soil takes 500 to 1000 years to form. Soil is constantly being formed and eroded. The soil formation is the process of weathering of rocks and minerals into regolith and [...]
List of 85+ MCQs on soil science ! This will help you to learn about the frequently asked objective type questions on soil science especially compiled for ICAR, ARS, IARI Ph.D and other competitive exams. 1. Hue denotes (A) Dominant spectrum (B) Lightness or brightness (C) Purity (D) Intensity Ans. A 2. Phosphorus uptake in alkali soil in the form [...]
The methods available for gully control are – (1) Diversion of runoff, (2) Vegetative methods, (3) Construction of temporary structures, and (4) Construction of permanent structures. (1) Diversion of Runoff: Diversion of runoff is achieved by constructing diversion drains. The diversion drain is a shallow channel put across the slope above the gully. The design principles of diversion drains are [...]