What transports millions of humans over water every year?
helicopters gliders electricity engines airplanes space ships Gravity rivers
A B C D E F G H
Millions of people fly safely in airplanes every year.
Airplanes transport millions of humans move across bodies of water every year
What transports millions of humans over water every year? (A) helicopters (B) gliders (C) electricity (D) engines (E) airplanes (F) space ships (G) Gravity (H) rivers