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 upper reaches of a watershed usually consist of hilly areas. These areas have an undulating topography and are foci for soil erosion. In areas with steep slopes and subjected to soil erosion vegetation do not get established. Due to lack of vegetative cover soil erosion is accelerated transporting large quantities of silt into the streams below. The uncontrolled runoff [...]