Geography Crossword

123456
Across
  1. 4. defined as the alteration or change of the molecule structure
  2. 6. the addition of oxygen and water to a rock
Down
  1. 1. the process of breaking apart the molecules in a rock by water
  2. 2. also known as acid rain
  3. 3. planting seeds
  4. 5. the addition of hydrogen and water that turns rock into clay