Different landforms and processes involved in their formation

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Across
  1. 4. are those that rise higher than the rest of their surroundings
  2. 7. are landforms controlled by gelogoical processes
  3. 8. created from exclusively erotional and weathering activites
  4. 10. the last and inner most layer of the earth
  5. 11. sometimes called "gorge", deep ravine between cliffs
  6. 13. predominantly silt-sized sediment formed by the accumulation of windblown dust
  7. 16. largest layer of the earth
  8. 18. are formed by the chemical and mechanical action of the wind
  9. 19. protects us from harmful radiation from the sun
  10. 20. has a flat topped hill and steep sides
Down
  1. 1. circulating effect
  2. 2. also known as table lands or flat topped mountains
  3. 3. was discovered by a croatian seismologist Andrea Mohorocivic
  4. 5. believed to be the responsible for different rock behaviors within the mantle
  5. 6. defined as the natural physical features of the earth
  6. 9. also called as a rock pedestral
  7. 12. elevated portions of lands that are formed by faulting
  8. 14. are flat and broad land areas and great changes in elevation
  9. 15. small mounds of hills and sand
  10. 17. is a low lying area of land situated between hills or mountains