the risks and benefits of airplanes are that you can travel practically anywhere and that you might die doing it
they fly
To be an airplane with jet engines? All jet airplanes leave contrails.
Yes.
Air
Gravity.
“Benefits & Risks”
five jet
fluorecent orange
No. Airplanes are faster.
No
the stratosphere
Military airplanes with big, powerful jet engines and lots of things that go boom!