Chapter 13 : Sources of Energy
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50. The Sun’s energy reaches Earth through:
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49. Which energy source is most suitable for sustainable development?
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48. Which fuel is commonly used in biogas plants?
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47. Which energy source is associated with dams?
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46. Which of the following is NOT a fossil fuel?
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45. Fossil fuels were formed from:
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44. Which source of energy can cause radioactive pollution?
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43. The main component of natural gas is:
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42. Which fuel has the highest calorific value among these?
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41. Which source of energy is used to produce electricity in dams?
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40. The rotating part of a windmill is called:
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39. Which of these is a disadvantage of solar energy?
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38. Which fuel leaves no ash after burning?
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37. The energy obtained from the Sun is called:
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36. Biogas plants help in:
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35. Which of the following is a renewable source?
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34. Hydropower plants are generally located near:
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33. Which energy source is best suited for remote areas?
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32. Charcoal is obtained from:
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31. Which of the following is an inexhaustible source of energy?
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30. The process of splitting a heavy nucleus is called:
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29. Which source of energy does not produce greenhouse gases during operation?
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28. Energy from tides is called:
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27. Which of the following is a disadvantage of fossil fuels?
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26. Which energy source depends on flowing rivers?
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25. Which source of energy is used in villages for cooking?
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24. The full form of OTEC is:
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23. Biomass includes:
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22. Which source of energy is eco-friendly?
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21. Windmills work efficiently in places having:
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20. Which source of energy is obtained from hot regions inside the Earth?
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19. Which gas is released in large amounts by burning fossil fuels?
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18. Solar cookers are useful because they:
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17. Which source of energy is used in a nuclear reactor?
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16. The movement of ocean waves can be used to generate:
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15. Which of the following is a non-renewable source?
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14. Which device converts solar energy directly into electricity?
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13. The energy stored in biomass comes from:
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12. Which fuel is considered smokeless?
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11. Nuclear energy is obtained by:
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10. Which of the following is a fossil fuel?
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9. Biogas is mainly composed of:
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8. Hydroelectricity is produced using:
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7. The largest source of energy on Earth is:
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6. Wind energy is generated by:
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5. Which energy source causes minimum environmental pollution?
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4. Which source of energy is renewable?
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3. A good source of energy should be:
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2. Which fuel is commonly used in thermal power plants?
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1. Which of the following is a conventional source of energy?
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