9.1 Crossword

12345678
Across
  1. 2. primary energy producer
  2. 3. left damaged after chemical innovations
  3. 6. this was common among large farm land owners
  4. 7. a leading cause of climate change
  5. 8. key word in the learning objective
Down
  1. 1. became widely available to people after the 1900’s
  2. 3. a way to transport cargo long distance
  3. 4. technology led people to communicate long distance
  4. 5. spread among people causing death