Plate Tectonics Crossword Puzzle

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Across
  1. 3. Movement of plates
  2. 6. Shaking of the ground
  3. 7. Innermost layer of the Earth
Down
  1. 1. Outermost layer of the Earth
  2. 2. Earth's crust and upper mantle
  3. 4. Segments of the Lithosphere
  4. 5. Vent in the Earth's crust for eruption