This terms work

123456789101112
Across
  1. 1. - a colour
  2. 5. map - a map marked with contour lines.
  3. 7. - clearing a large area of trees
  4. 9. - an overflow of a large amount of water beyond its normal limits
  5. 10. quake - a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.
  6. 11. - a danger or risk
  7. 12. Canyon - A steep-sided canyon carved by the Colorado River
Down
  1. 2. - geological process in which sediments, soil and rocks are added to a landform or land mass
  2. 3. Plate - a massive, irregularly shaped slab of solid rock
  3. 4. - a big rock
  4. 6. - wear away or change the appearance or texture of something by long exposure to the atmosphere.
  5. 8. - being eroded by wind, water, or other natural agents