Question

which means if transport is used air travel​

Answer 1

Answer:

Air travel is a form of travel in vehicles such as helicopters, hot air balloons, blimps, gliders, hang glider, parachuting, airplanes, jet aircraft, or anything else that can sustain flight. Use of air travel has greatly increased in recent decades – worldwide it doubled between the mid-1980s and the year 2000.

Hope it helps you

Answer 2

Answer:

Air travel is a form of travel in vehicles such as helicopters, hot air balloons, blimps, gliders, hang glider, parachuting, airplanes, jet aircraft, or anything else that can sustain flight.