Era's Crossword

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Across
  1. 4. branch of economy that produces materials
  2. 5. respective politcal group
  3. 6. go from one place to another
  4. 7. machine with moving parts that converts power to motion
  5. 8. candy made of cocoa
Down
  1. 1. long-distance transmission of messages using symbols known to the recipient
  2. 2. growing crops and raising livestock
  3. 3. winged aircraft