Jet aircraft are used in every form of aviation, as transports of cargo or people, as fighter or bomber aircaft, and they particulary excel at long range patrol in naval airforces.
To be an airplane with jet engines? All jet airplanes leave contrails.
Yes.
Gravity.
Air
they fly
Yes they are still being used but they are not popular. That answer is true for military airplanes but for civilian airplanes propeller driven airplanes are the MOST flown and more of them are being manufactured than jet planes.
Airplane engines use jet fuel. Read more, below.
When oil is refined, the highest quality goes to airplanes. It is called jet fuel.
Well the first airline to use jets was.... http://www.answerblip.com/what-was-the-first-commercial-airline-to-use-jet-airplanes
five jet
buggered if I know
people play with them,also they can launch airplanes.