Vocabulary check

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Across
  1. 2. Praying to a God or Gods
  2. 4. We eat it!
  3. 5. Farming!
  4. 6. All life on earth needs this!
Down
  1. 1. The way humans organise social orders
  2. 2. Things we use to make everything
  3. 3. It builds cities and empires