Air. Nitrogen in the tires.
Airplanes release greenhouse gases. They can cause ozone depletion.
The engines give off some gases, but that has been considerably reduced.
barbed wire, flamethrower, mounted machine guns, tanks, submarines, hand grenades, gases and airplanes.
Tanks. Airplanes (for reconnaissance). Others? Ken:> improved cannons, machine guns, and artillery, poison gas, armored tanks, airplanes, and U-boats (submarines)
what was the first weapon used in world war 1
Yes, jets really are airplanes but they are faster airplanes.
All gliders are airplanes, but not all airplanes are gliders.
airplanes are cool
Yes, jets are airplanes but they are called supersonic airplanes.
Yes, airplanes are aircraft. However, not all aircraft are airplanes. Helicopters, blimps, and balloons are aircraft- but they are not airplanes. Airplanes are generally fixed wing machines that move through the air.
Airplanes.
Airplanes are kept in hangars.