| Guess Question Term-1, (2012-13) Social Science X (2012-13) |
| Chapter -Resources and development: Development: Power Sharing |
| I. Questions carrying 2 and 3 marks. |
| 1. Define resources? How resources are important for economic development? |
| 2. Briefly discuss the resources on the basis of status of development. |
| 3. Differentiate between stock and reserve. |
| 4. What is Exclusive Economic Zone? Name some community owned resources. Who takes care of National resources? |
| 5. Discuss the major problems in developing resources. |
| 6. What agendas were decided by UNCED in Agenda 21? |
| 7. Why resource planning is necessary for any country? |
| 8. “Resources can contribute to development only when they are accompanied by appropriate technological development and institutional changes.” Discuss with example. |
| 9. “There is enough for everybody’s need and not for any body’s greed.” Explain the statement in reference to conservation of resources. |
| 10. Mention the distribution of relief features and their uses. |
| 11. Study the fig.1.4 of your book carefully and answer the following questions: |
| Mark the advantages in the land use pattern. |
| Mark the disadvantages in the land use pattern. |
| What is waste land? How could it be put into use? |
| 12. Discuss the different measures to conserve land. |
| 13. What are the features of Black soil? |
| 14. Explain the natural causes of soil erosion. |
| 15. How average income hides the actual development of the nation? |
| 16. Define the terms: |
| Infant mortality rate. Literacy rate. Life expectancy at birth. |
| 17. How the criterion taken by UNDP is different from World Bank? Which is the most appropriate one? |
| 18. Why should we adopt sustainable development? Explain with the help of example. |
| 19. Why Sri Lanka had to face a civil war? |
| 20. How community government serves power sharing? |
| II. Ques. Carrying 5 marks. |
| 21. Explain the resources according to their classification. |
| 22. Discuss the natural causes of soil erosion and give a measure for each to conserve soil. |
| 23. Discuss the power sharing of Belgium. |
| 24. Compare the power sharing of Sri Lanka and Belgium. |
| 25. Discuss the horizontal and vertical power sharing in modern democracy. |
Class 09 Atoms and Molecules Numerical Problem based on Law of chemical Combination Law of conservation of mass Law of constant proportion Empirical formula 1. If 10 grams of CaCO 3 on heating gave 4.4g of CO 2 and 5.6g of CaO, show that these observations are in agreement with the law of conservation of mass.(Based on Law of conservation of mass) Solution: Mass of the reactants = 10g ; Mass of the products = 4.4 + 6.6g = 10g Since the mass of the reactants is equal to the mass of the products, the observations are in agreement with the law of conservation of mass. 2. 1.375 g of cupric oxide was reduced by heating and the weight of copper that remained was 1.098g. In another experiment 1.179 g of copper was dissolved in nitric acid and the resulting copper nitrate was converted into cupric oxide by ignition . The weight of cupric oxide formed was 1.476 g. which law of chemical combinations does this data state? Solution: in first experiment: Copper oxide = 1....
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