Bombs from aeroplanes. Tanks. Poison Gas.
Poison Gas Tanks Aeroplanes
Skies are used for transportation all the time - think of aeroplanes.
Yes
aluminum
Ch. Rahmat Ali
The first aeroplanes of world war one were not used to fight they were simply used to observe enemy trenches, but planes soon become fighter planes when machine guns were added to the plane, also in world war 1 they could reach speeds of 100mph.
Gravity acts against aeroplanes and forward speed and lift are used to conquer gravity.
radar
Aluminum.
radar
Petrol is used in airplanes...a lot of it.