types of weathering

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Across
  1. 3. weathering rocks get smaller
  2. 6. mechanical breaking of rocks
  3. 7. carbonic acid
  4. 8. digs burrow and rock is exposed
  5. 9. freeze thaw
Down
  1. 1. a rocks composition changes
  2. 2. rusting/color change
  3. 3. exfoliations ,layers peel away
  4. 4. dissolves rock and makes holes
  5. 5. lichen and moss