5000000000
a lot!
2,606 in the World Trade Center and in the surrounding area, another 125 at the Pentagon, and 365 people aboard the airplanes.
5 people per annum
People use model airplanes because they like airplanes or the look of them.
People have airplanes to get from place to place faster, to get to inaccessible places, and to fight battles.
They are important because if we didn't have them then we wouldn't be able to ride in airplanes. Airplanes are used for many important things such as shipping goods, transporting people, and in war and without pilots their would be no airplanes flying.
there are 1,ooo,oo1 airplanes
Because people are not able to fly without a airplanes.
No one 'writes' aeroplanes they are manufactured by many thousands of people.
There are many people that improved the airplane. The airplane is still being improved today.
There are millions of people who travel via airplanes during the Thanksgiving holiday in the United States. The Air Transport Association predicts that 16.3 million people will fly during the holiday.
No, that's way before the invention of airplanes.