challenge it crossword

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Across
  1. 5. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
  2. 7. the edges where two plates meet
  3. 9. tending to be different or develop in different directions
Down
  1. 1. coming closer together, especially in characteristics or ideas.
  2. 2. hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling
  3. 3. rock formed by solidification of a molten magma
  4. 4. make a thorough or dramatic change in the form, appearance, or character
  5. 6. describes the outermost shell of a terrestrial planet.
  6. 8. a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems.