Answer:
Air travel is the most modern form of public transport and it was developed in the 20th century.
Millions of people use airplanes for a variety of reasons.
It is also extremely expensive to fly up air-travel facilities.
Some travel for business, others go on holiday by air and others use cargo planes to move their products from country to country very quickly.
Some courier companies now have their own fleet of planes ready to carry parcels and post more efficiently.
There are different kinds of passenger services---some are cheap and provide a 'no-frills' service which is good for short journeys. Other airlines provide passengers with a luxurious flying experience. Airports are finally getting busier and it is evident hundreds more passengers and businesses than ever are using airplanes to get to their destinations.
Step-by-step explanation:
Find the word that fits best :)