1. The magnetic compass, used in explorations, had been known since
► (d) 1380.
| History – Themes
  in World History | ||
| MCQ Questions for Chapter 3 An
  Empire Across Three Continents | ||
| 
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| Pol
  Science –  India
  Constitution at Work | ||
| MCQ Questions for Chapter 2 Rights in the Indian Constitution | ||
| MCQ Questions for Chapter 9 Constitution as a Living Document  | ||
| 
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| –  Political Theory | ||
| MCQ Questions for Chapter 1 Political Theory: An
  Introduction | ||
| 
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| Geography –   Fundamentals of Physical Geography | ||
| MCQ Questions for Chapter 2 The Origin and Evolution of the Earth | ||
| MCQ Questions for Chapter 4 Distribution of Oceans
  and Continents | ||
| MCQ Questions for Chapter 8 Composition and Structure of Atmosphere | MCQ Questions for Chapter 9 Solar Radiation, Heat Balance and
  Temperature | |
| MCQ Questions for Chapter 10 Atmospheric
  Circulation and Weather Systems | MCQ Questions for Chapter 12 World Climate and Climate Change | |
| 
 | ||
| –  Indian Physical Environment | ||
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