Assignment & Q/A

Chapter 2: Natural Resources – Land and Soil

(Class 8)

Exercises :-

Q1. Fill in the blanks.

1. Three-fourth’s of the earth’s surface is covered with……………
2.  Plains and river valleys offer suitable land for ……………..
3. Community lands are also called………………………………
4. …………… and……….are the major threats to soil as a resource.
5. Fresh water accounts for only about …………..per cent.
6. ………….. determines colour, texture, chemical properties mineral, content, permeability of the soil.
7. …………. and ………….. influence rate of weathering and humus.
8. A dripping tap wastes………………… litres in a year
9. Three-fourth’s of the earth’s surface is covered with ____________
10. Plains and river valleys offer suitable land for ______________________
11.  Community lands are also called_________________________________.
12.  ____________and _________are the major threats to soil as a resource.
13.  Fresh water accounts for only about _______per cent.
14.  _____________determines colour, texture, chemical properties mineral, content, permeability of the soil.
15.  _____________and __________influence rate of weathering and humus.
16. . A dripping tap wastes __________ litres in a year
    
    

Q2. True/False

1. Countries located in climatic zones most susceptible to droughts face great problems of water  scarcity.
2.  Plains and river valleys are the thinly populated areas of the world. 
3. Human factors such as population and technology are also important determinants of land use pattern. 
4. Forests are broadly classified as evergreen and deciduous. 
5.  Water is a vital renewable natural resource. 
6.  It takes hundreds of years to make just one centimeter of soil.
7. Countries located in climatic zones most susceptible to droughts face great problems of water scarcity.
8.  Plains and river valleys are the thinly populated areas of the world. _____
9.  Human factors such as population and technology are also important determinants of land use pattern.
10.  Forests are broadly classified as evergreen and deciduous. _________
11. . Water is a vital renewable natural resource. _________
12.  It takes hundreds of years to make just one centimeter of soil. _________

Short answer type questions –

Q3. Which country has the highest percentage of land under forest?

Q4. Which country has the highest percentage of land under cropland?

Q5. Which country has the highest percentage of land under pasture?

Q6. What are the major threats to soil as a resource?

Q7. What method of soil conservation is used in coastal and dry regions?

Q8. What percent of fresh water is fit for human use?

Q9. What make the soil fertile?

Q10. What affect the rate of humus formation?

Q11. Why is ocean water not fit for human consumption?

Q12. What is soil?

Q13. Which are the two main climatic factors responsible for soil formation?

Q14. Which method is most appropriate to check soil erosion on steep slopes?

Q15. What do you mean by shelter belt?

Q16. How are forest classified on the basis of latitude?

Q17. What are the major types of vegetation in the world?

Q18. How are vultures important to the environment?

Q19. What percentage of Earth is covered by land?

Q20.. Which country has the highest percentage of land under forest?

Q21.. Which country has the highest percentage of land under cropland?

Q22.Which country has the highest percentage of land under pasture?

Q.23.What are the major threats to soil as a resource?

Q24. What method of soil conservation is used in coastal and dry regions?

Q23. What percent of fresh water is fit for human use?

Q24. What make the soil fertile?

Q25. What affect the rate of humus formation?

Q26. Why is ocean water not fit for human consumption?

Q27. What is soil?

Q28. Which are the two main climatic factors responsible for soil formation?