Across
- 4. Airplanes make ______ shipping possible
- 7. Became part of the mail system in 1906
- 8. Trucks can hold up to 80,000 pounds which is equivalent to 14 ____
- 9. became part of the mail system in 1832
- 10. are delivered 7 days a week
Down
- 1. was founded by Benjamin franklin in 1755
- 2. Packages are delivered by the Post office through vehicle and ____
- 3. is delivered 6 days a week
- 5. The most Fuel____ way to transport goods
- 6. became part of the mail system in 1918