Christian Salazar

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Across
  1. 4. People found out how to remove impurities from metals
  2. 5. people found out how to smelt metal
  3. 7. Heavily polluted air and water
  4. 8. Technology gets better faster
Down
  1. 1. companies are being made
  2. 2. People are now focused on the quality of life
  3. 3. Huge advancements were made
  4. 6. Nomadic people with smaller communities