Class 8th Social Science Workbook| Chapter 2 Land, Soil, water, Natural vegetation and wildlife Resources | Important Assignment Questions

    Class VIII Social Science Geography Important Assignment Questions

        CH2 - Land, soil, Water, Natural vegetation and wildlife Resources

Very short Answer Type Questions

Q. 1. Mention the main reason why places differ from each other. 

Ans.  Places are different from each other because of differences in the quality of land, soil, water, natural vegetation etc. 

Q. 2. Why is the distribution of population uneven in different parts of the world? 

Ans. The distribution of population is uneven in different parts of the world mainly due to varied characteristics of land and climate. 

Q. 3. Give reason why plains and river Valley are the most densely populated areas of the world. 

Ans. Plains and river Valley offers suitable land for agriculture hence, these areas are densely populated. 

Q. 4.  Which natural areas are sparsely populated? 

Ans. The rugged topography, steep slopes of the mountains, Low-lying areas susceptible to water logging, desert areas are sparsely populated. 

Q. 5. Define land use. 

Ans. The use of land for different purposes such as agriculture, forestry, mining, building houses, roads and setting up of industries,Is called as Land use. 

Q. 6. What are the physical and Human factors that determine the use of land? 

Ans.   The physical factors of that determine the use of land are topography, soil, climate, minerals and availability of water. And the the Human factors are population and technology. 

Q. 7. In which two countries in the world is the percentage of cropland area the maximum. 

Ans. In India ( 57%) and France(35%)  the percentage of cropland areas are maximum. 

Q. 8.  On what basis can land be divided into? 

Ans.  Land can be divided on the basis of ownership - private land and community land. 

Q. 9.What Is the main reason for change in  land use pattern over time? 

Ans. The growing population and development of technology is the main reason for change in land use pattern over time. 

Q. 10. Mention the two main reasons for the  destruction of forest cover and arable land. 

Ans.  Growing population and   their ever growing demand are two main reasons for destruction of forest cover and arable land. 

Q. 11.  Name some methods which can be adopted to check the rate of land degradation. 

Ans.   Afforestation, land reclamation, minimise use of  chemical pesticides and fertiliser, check on Overgrazing are some methods can adopted to check the rate of land degradation. 

Q. 12.  What are landslides? 

Ans.  Landslides are the mass movement of rocks or earth down a slope. 

Q. 13. Give some causes of landslides. 

Ans. Causes of landslides may include earthquake, floods and volcanoes. 

Q. 14.   How was the two hundred meter stretch of old Hindustan-Tibet road, National Highway-22 damaged? 

Ans.  A massive landslide hit Pangi village near Reckong Peo in Kinnaur District of Himachal Pradesh and damaged a 200- meter stretch of old Hindustan-Tibet road, National Highway-22. 

Q. 15.  Mention some broad mitigation techniques of landslides. 

Ans.  i) Hazard mapping to locate area prone to landslides. Hence, such areas can be avoided for building settlements. 

ii) Increase in the vegetation cover to arrest landslides. 

Q. 16.  What is soil? 

Ans.  Soil is defined as the loose material consisting of organic and inorganic substance covering the topmost layers of the earth. 

Q. 17. What is the composition of soils? 

Ans.  Soil is composed of organic matter, minerals, and weathered rocks found on the earth. 

Q. 18. How is soil formed? 

Ans. Soil is formed by the weathering of rocks which takes place over millions of years. 

Q. 19. Define weathering. 

Ans. The breaking up and decay of exposed rocks, by temperature changes, frost action, plants animals and human activity is called as Weathering. 

Q. 20. What are the factors that determine soil formation? 

Ans.  The major factors of soil formation are the nature of the parent rock and climatic factors and the other factors are topography and organic materials. 

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