Lesson 4

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Across
  1. 2. someone who has a lot of skill in or a lot of knowledge about something
  2. 5. damage caused to water, air and land by harmful materials or waste
  3. 7. designed and made using the most recent ideas and methods
  4. 8. a super big city
  5. 10. the cars, trucks and other vehicles using a road
Down
  1. 1. the number of people living in a place
  2. 3. land that is not in towns or cities and may have farms and fields
  3. 4. develop industry
  4. 6. a chance to do or experience something good
  5. 9. the most important city in a country or state; where the government is