Social Science Crossword

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Across
  1. 7. A body of land surrounded by water on three sides
  2. 8. Country having highest population
  3. 9. The theory that the temperature of the atmosphere increases due to the increase in gasses such as carbon dioxide
  4. 10. Natural disaster that results in eruption of lava
  5. 12. Instrument used to detect and record earthquakes
  6. 15. Constitution of India came into effect on 26 January 1950 is known as
  7. 17. Father of the Nation
  8. 19. The Mughal emperor to house the tomb of his favourite wife, Mumtaz Mahal
  9. 20. Prime minister of India
Down
  1. 1. Famous personality known as Chacha Nehru
  2. 2. East Pakistan is now called
  3. 3. Latitude that runs through the center of the Earth
  4. 4. A large scale air mass that rotates around a strong center of low atmospheric pressure
  5. 5. They ruled India for decades
  6. 6. Not a planet in the solar system anymore
  7. 11. Study of universe
  8. 12. Largest desert in the world
  9. 13. one amongst the seven wonders of the world situated in Agra, India
  10. 14. The soil and rock layer of the earth
  11. 16. Coldest continent in the world
  12. 18. Piece of sub-continental land that is surrounded by water