Kerala PSC Geography Question and Answers - 29
  1. Nearly what percent of Earth's volume is constituted by the crust
  2. Which are the major constituent elements of the crust  
  3. The discontinuity between the hydrosphere and the crust is known as  
  4. The portion of the interior beyond the crust is called
  5. What is the name of the discontinuity between the crust and the mantle
  6. What is the average thickness of the mantle
  7. Nearly 84 percent of the earth's volume and 67 percent of the Earth's mass is occupied by
  8. Which elements are the major constituents of the mantle  
  9. The uppermost solid part of the mantle and the entire crust constitute
  10. What is the name of the mechanically weak and ductile, deforming region of the upper mantle which lies just below the lithosphere
  11. What is the name of the discontinuity between the upper mantle and the lower mantle
  12. Which is the innermost layer surrounding the Earth's centre
  13. The core is seperated from the mantle by
  14. What is the main constituents of the Earth's crust
  15. The core constitutes nearly --- percent of Earth's volume
  16. What is the name of the discontinuity between the upper core and lower core
  17. ---- is sometimes used to refer the core of the Earth or sometimes the whole interior
  18. Which type of rock is known as 'the Mother of all rocks'
  19. Which type of rocks are generally the hardest and heaviest of all rocks
  20. Which type of rocks are formed from the coolling of magma and often ahas large crystals
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