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. During extreme climatic situations like drought, tsunami, and many other conditions, massive erosion occurs. The amount of hill slope erosion largely depends on how the land is used. Which method is used to break up the force of wind? (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 and rill erosion. Sheet erosion is the second stage of the erosion where a thin layer of the soil is removed. Rill erosion. Soil erosion is also caused due to defective methods of farming. Sheet erosion. Gully erosion. b. Gully erosion: The running water cuts through the clayey soils and makes deep channels as gullies. The overland flow hydrograph is developed by assuming broad, uniform sheet flow. What do you mean by the sustainable development ? Free PDF Download of CBSE Class 10 Social Science Geography Chapter 1 Resource and Development Multiple Choice Questions with Answers. Answers to this Paper must be written on the paper provided separately. This process is called sheet erosion. In splash erosion, the impact of a falling raindrop creates a small crater in the soil, ejecting soil particles. Wind blows loose soil off flat or sloping land. ( 5 marks question ) class 10 geography . Sheet Erosion: Gully Erosion: 1. Sheet erosion refers to the uniform movement of a thin layer of soil across an expanse of land devoid of vegetative cover. 30. Rill erosion is erosion that results in small, short-lived and well-defined streams. 6. The time given at the head of this Paper is the time allowed for writing the answers. Class 1 - 3; Class 4 - 5; Class 6 - 10; Class 11 - 12; CBSE. 22. This reduces the actual area under cultivation and the yield of crops decline. Sheet Erosion: Uniform removal of the top soil just like a sheet. Sheet erosion will consequently occur after some time. This can occur when heavy rain occurs, or the shallow surface begins to runoff from water flow. Chapter 10-1 of 33 Chapter 10 - Erosion and Sediment Control 10.1 Introduction Erosion and sedimentation are natural or geologic processes whereby soil materials are detached and transported from one location and deposited in another, primarily due to rainfall and runoff. Found in Western India. Hill slopes are prone to sheet erosion and rill erosion. It typically occurs evenly over a uniform slope and goes unnoticed until most of the productive topsoil has been lost. Report ; Posted by Shubham Sonu 21 hours ago. : 60–61. Ans. 4. Ploughing along the contour lines is known as contour ploughing. NCERT Books. Gullies cut up agricultural land and make it unfit for cultivation. MCQ Questions for Class 10 Social Science with Answers was Prepared Based on Latest Exam Pattern. Soil erosion is the wearing away of dirt and soil by water, wind, and human actions. This time is to be spent in reading the question paper. Dry soil particles of silt or clay size can be transported over great distance by wind. 29. What steps can be taken to control soil erosion in hilly areas ? The nutrients required by the plants are taken away by the wind. The main difference between erosion and weathering lies in the position of rocks. Sheet erosion is widely observed in clusters 1 2 7 10 . Class 10 Geography Chapter 1 Resource and Development Important Extra Questions updated for new academic session 2020-2021. Explain different types of soil erosion . 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. Occurs on even surface layer. Sometimes, water flows as a sheet over large areas down a slope. 3. It happens when water from rainfall does not soak into the soil, but runs across it instead. Occurs on steep slopes. Wind blows loose soil off flat or sloping land, and is called wind erosion. Rill Erosion: This is the second stage of sheet erosion. What is wind erosion ? What is responsible for sheet erosion ? Soil erosion is the loss of top fertile layer of soil either by wind or by water. Even though we haven’t mentioned glaciers yet, they are like giant rivers of ice that slowly move around. a. Ans. BOOK FREE CLASS; COMPETITIVE EXAMS. When the top layer of the soil is removed over a large area by running water, it is called sheet erosion. 2. 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!) 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). Erosion. Sheet erosion is widely observed in clusters 1 2 7 10 and 13 however only 20. CLASS. Erosion also involves the breaking down of the rock particles being carried downstream by the river. Ploughing along the contour lines can decelerate the flow of water down the slopes. What is contour ploughing ? Report ; Posted by Juweriya Azahar an hour ago. Erosion and weathering refer to processes in which the rocks are broken down into fine particles. Other Forces. Accelerated erosion and sedimentation can occur at times in Sheet erosion occurs on gentle slopes. Sheet Erosion. 31. Attempt seven questions in all. This is known as sheet erosion. Small finger-like rills begin to appear on the landscape. 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!) ICSE Geography Previous year Question Paper 2017 Solved for Class 10. BNAT; Classes. Sheet erosion is erosion that occurs fairly evenly over an area, like a bed sheet sliding off a bed. 5. 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. In the course of this period also, a fast-moving wind is usually experienced. 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. 3. Steep sided valley are formed. 3. You will not be allowed to write during the first 15 minutes. This preview shows page 30 - 36 out of 74 pages. The soil particles scattered by raindrops block the soil pores. Erosion is so dramatic here because the cliffs along the coast are made from boulder clay, which is soft and crumbly rock. Define the term soil erosion •what steps can be taken to control soil erosion. Students can solve NCERT Class 10 Social Science Resource and Development Multiple Choice Questions with Answers to know their […] Found in Chambal ravines. Sheet Erosion: When the top layer of the soil is removed over a large area by the running water is called as sheet erosion. Heavy rains and sea storms make the erosion worse. Erosion involves the wearing away of rock and soil found along the river bed and banks. This will make it difficult for the rain water to the soil. 4. Over a period of time, the fine rills increase in number and also become deeper and wider. The top Soil is removed. 32. Sometimes water flows as a sheet over large areas down a slope. 4. The mechanisms involved in wind erosion depend on soil texture and the size of soil particles. This results in the loss of the organic matter and nutrients since the top layer of the finest soil particles are lost. Q.51. Sheet erosion is harmful since it removes the finer and more fertile top Soil. It leads to the washing away of the top soil. As they slowly move, they shape mountains and also carve out valleys. Our weathering and erosion worksheets will help you forecast clear comprehension of these concepts. (45) cementation rock cycle* breccia* compaction* School Harvard University; Course Title CLASS 12; Uploaded By Agree08. Ans. What is the main cause of land degradation in Madhya Pradesh? It is the removal of soil particles by little raindrops. Harsh climatic conditions. This is known as wind erosion. Raindrops detach soil particles, which go into solution as runoff occurs and are transported downstream to a point of deposition. Sheet Erosion Sheet erosion is the movement of soil from raindrop splash and runoff water. Very Short Answers:- 1.Define ‘resources’. Pages 74. What is gully erosion and sheet erosion? 8. In such cases the top soil is washed away. Rill erosion and sheet erosion are two types of soil erosion. (a) Splash or raindrop erosion: This is the first stage of the erosion caused by rainfall. 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 a type of erosion that results in small, yet well defined streams. Rill erosion occurs when runoff water forms small channels as it concentrates down a slope. Class-10 » Social Science ... 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. CBSE > Class 10 > Social Science 2 answers; How did nationalism emerge in Europe? 27. Erosion by Glaciers. (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. In times of drought, for example, the vegetative cover of the soil withers away and the land is left uncovered. Get wind of our weathering and erosion worksheets for students at all grade and language levels. CLASS 12. In such cases the top soil is washed away. How can we stop soil erosion? Our Weathering and Erosion lesson plan introduces the difference between the two terms. MCQ Questions for Class 10 Geography: Ch 1 Resources and Development. Q.50. Nature is truly astounding. Q.52. Class 10. Sheet erosion is harmful since it removes the finer and more fertile top soil. 28. 2. Deposition of the eroded soil occurs at the bottom of the slope (Figure 3) or in low areas. 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. Sheet erosion occurs when a thin layer of topsoil is removed over a whole hillside paddock—and may not be readily noticed. Explain the two types of water erosion. 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