Class 1 - 3; Class 4 - 5; Class 6 - 10; Class 11 - 12; CBSE. What do you mean by the sustainable development ? Notes on Sedimentary Rocks, Weathering and Erosion- Chapter 10, 12 Name _____ Date_____Class_____ Vocabulary List (Number, write and define these words on another sheet of paper, those that have a * please illustrate, be creative!) Dry soil particles of silt or clay size can be transported over great distance by wind. Complete NCERT Book Page wise Solution Class 10th as per Latest CBSE Syllabus Geography Chapter-1 Resources and Development The following page provides you NCERT book solutions for Class 10 social science, social science Class 10 notes in pdf are also available in the related links between the texts. Erosion also involves the breaking down of the rock particles being carried downstream by the river. What is the main cause of land degradation in Madhya Pradesh? MCQ Questions for Class 10 Social Science with Answers was Prepared Based on Latest Exam Pattern. Sheet erosion will consequently occur after some time. Sometimes, water flows as a sheet over large areas down a slope. 3. Which method is used to break up the force of wind? Our weathering and erosion worksheets will help you forecast clear comprehension of these concepts. This is known as wind erosion. Explain the two types of water erosion. Rill erosion occurs when runoff water forms small channels as it concentrates down a slope. 3. Even though we haven’t mentioned glaciers yet, they are like giant rivers of ice that slowly move around. : 60–61. Pages 74. Our Weathering and Erosion lesson plan introduces the difference between the two terms. Once the unsteady flow calculations are made to get the runoff peak rate and duration, quasi–steady state flow is assumed at the peak rate and is partitioned into broad sheet flow for interrill erosion and concentrated flow for rill erosion. 3. Nature is truly astounding. The amount of hill slope erosion largely depends on how the land is used. Heavy rains and sea storms make the erosion worse. BNAT; Classes. Gully erosion. The soil particles scattered by raindrops block the soil pores. Rill erosion is a type of erosion that results in small, yet well defined streams. Attempt seven questions in all. Wind blows loose soil off flat or sloping land, and is called wind erosion. Splash erosion is generally seen as the first and least severe stage in the soil erosion process, which is followed by sheet erosion, then rill erosion and finally gully erosion (the most severe of the four). Sheet Erosion Sheet erosion is the movement of soil from raindrop splash and runoff water. 22. Harsh climatic conditions. Class 10. Rill erosion. Sheet Erosion. 4. 28. (iii) In situ soil: When soil is formed at its original position by the weathering of the parent rock, it is known as in situ soil like the black soil. ( 5 marks question ) class 10 geography . Class-10 » Social Science ... Sheet erosion. 4. This lesson provides ample opportunity to leverage concept imagery and sensory stimulation with the use of videos and images from websites, as well as in-class hands-on experiments that demonstrate the effects of weathering and erosion over a long period of time. Class 10 Geography Chapter 1 Resource and Development Important Extra Questions updated for new academic session 2020-2021. In times of drought, for example, the vegetative cover of the soil withers away and the land is left uncovered. The nutrients required by the plants are taken away by the wind. CLASS 12. Wind blows loose soil off flat or sloping land. Report ; Posted by Juweriya Azahar an hour ago. Very Short Answers:- 1.Define ‘resources’. Erosion by Glaciers. Students can solve NCERT Class 10 Social Science Resource and Development Multiple Choice Questions with Answers to know their […] Rill erosion and sheet erosion are two types of soil erosion. What steps can be taken to control soil erosion in hilly areas ? What is gully erosion and sheet erosion? This process is called sheet erosion. Erosion is so dramatic here because the cliffs along the coast are made from boulder clay, which is soft and crumbly rock. Erosion. Therefore more and more trees should be planted along the edges of the field, the waste land and also on the steep slopes. Rill erosion is erosion that results in small, short-lived and well-defined streams. 31. (ii) Soil conservation: Preventing soil erosion by taking various measures such as plantation of trees, strip cropping and contour ploughing is known as soil conservation. Sheet erosion is widely observed in clusters 1 2 7 10 . 2. Sheet and rill erosion. The main difference between erosion and weathering lies in the position of rocks. Sheet erosion occurs when a thin layer of topsoil is removed over a whole hillside paddock—and may not be readily noticed. Sheet erosion occurs on gentle slopes. 2. 32. Other Forces. During extreme climatic situations like drought, tsunami, and many other conditions, massive erosion occurs. Rill Erosion: This is the second stage of sheet erosion. You will not be allowed to write during the first 15 minutes. As they slowly move, they shape mountains and also carve out valleys. Q.50. School Harvard University; Course Title CLASS 12; Uploaded By Agree08. Steep sided valley are formed. Ans. Accelerated erosion and sedimentation can occur at times in 30. Small finger-like rills begin to appear on the landscape. The overland flow hydrograph is developed by assuming broad, uniform sheet flow. Q.51. Q.52. 5. When the top layer of the soil is removed over a large area by running water, it is called sheet erosion. (ii) Erosion by wind: Wind erosion reduces the productive capacity of the soil by removing the loose particles of soil with the high velocity wind. MCQ Questions for Class 10 Geography: Ch 1 Resources and Development. Soil erosion is also caused due to defective methods of farming. In such cases the top soil is washed away. Sheet erosion refers to the uniform movement of a thin layer of soil across an expanse of land devoid of vegetative cover. Sheet Erosion: Uniform removal of the top soil just like a sheet. The top Soil is removed. Gullies cut up agricultural land and make it unfit for cultivation. This is known as sheet erosion. CBSE > Class 10 > Social Science 2 answers; How did nationalism emerge in Europe? Hill slopes are prone to sheet erosion and rill erosion. How can we stop soil erosion? Report ; Posted by Shubham Sonu 21 hours ago. What is wind erosion ? Sheet erosion. Get wind of our weathering and erosion worksheets for students at all grade and language levels. 8. Sometimes water flows as a sheet over large areas down a slope. It happens when water from rainfall does not soak into the soil, but runs across it instead. In such cases the top soil is washed away. With the help of photos and diagrams, these worksheets unpack these concepts and enable students to understand how erosion and different types of weathering affect our planet. Ans. 6. Soil erosion is the loss of top fertile layer of soil either by wind or by water. It typically occurs evenly over a uniform slope and goes unnoticed until most of the productive topsoil has been lost. This will make it difficult for the rain water to the soil. What is contour ploughing ? Answers to this Paper must be written on the paper provided separately. Notes on Sedimentary Rocks, Weathering and Erosion- Chapter 10, 12 Name _____ Date_____Class_____ Vocabulary List (Number, write and define these words on another sheet of paper, those that have a * please illustrate, be creative!) It leads to the washing away of the top soil. NCERT Books. Sheet erosion is the second stage of the erosion where a thin layer of the soil is removed. Erosion and weathering refer to processes in which the rocks are broken down into fine particles. Soil erosion is the wearing away of dirt and soil by water, wind, and human actions. Found in Western India. b. Gully erosion: The running water cuts through the clayey soils and makes deep channels as gullies. Sheet erosion is harmful since it removes the finer and more fertile top Soil. In the course of this period also, a fast-moving wind is usually experienced. BOOK FREE CLASS; COMPETITIVE EXAMS. Sheet Erosion: When the top layer of the soil is removed over a large area by the running water is called as sheet erosion. (a) Splash or raindrop erosion: This is the first stage of the erosion caused by rainfall. 4. It is the removal of soil particles by little raindrops. The time given at the head of this Paper is the time allowed for writing the answers. Erosion involves the wearing away of rock and soil found along the river bed and banks. Define the term soil erosion •what steps can be taken to control soil erosion. Free PDF Download of CBSE Class 10 Social Science Geography Chapter 1 Resource and Development Multiple Choice Questions with Answers. Occurs on even surface layer. ICSE Geography Previous year Question Paper 2017 Solved for Class 10. This reduces the actual area under cultivation and the yield of crops decline. Ploughing along the contour lines is known as contour ploughing. Over a period of time, the fine rills increase in number and also become deeper and wider. This preview shows page 30 - 36 out of 74 pages. This results in the loss of the organic matter and nutrients since the top layer of the finest soil particles are lost. (45) cementation rock cycle* breccia* compaction* Explain different types of soil erosion . In splash erosion, the impact of a falling raindrop creates a small crater in the soil, ejecting soil particles. The mechanisms involved in wind erosion depend on soil texture and the size of soil particles. a. Found in Chambal ravines. Sheet erosion is erosion that occurs fairly evenly over an area, like a bed sheet sliding off a bed. 2 See answers Arvansingh9814 Arvansingh9814 Answer: sheet erosin : it is the result of excessive flowing of water resulting in the removal of the topmost layer of soil. Sheet erosion is harmful since it removes the finer and more fertile top soil. What is responsible for sheet erosion ? CLASS. This can occur when heavy rain occurs, or the shallow surface begins to runoff from water flow. 29. Sheet erosion is widely observed in clusters 1 2 7 10 and 13 however only 20. Sheet Erosion: Gully Erosion: 1. 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