the greening of transportation

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Across
  1. 1. pay money; solve a problem
  2. 6. only one; not double
  3. 7. a record of money; a user name online
  4. 10. material to burn for energy (oil, gas)
  5. 11. one fourth; three months
  6. 12. already now; real and present
  7. 13. object that provides electricity
Down
  1. 1. help or work for others
  2. 2. protecting nature; can last long
  3. 3. using solid material
  4. 4. n. piece to connect electricity v. connect to power
  5. 5. more far in distance
  6. 8. working well with little waste
  7. 9. about the whole world