Fact 1: Aairplane is used for moving people across bodies of water.

Fact 2: Airplanes Air travel is the quickest way to travel and is probably best for long distances.

Given the two facts above, answer the question "What is used for moving people across bodies of water?" with the following options: 
- Air travel
 - Waves
 - Cars
 - heat energy
 - electricity
 - engines
 - Trains
 - energy


 

 Air travel        