Which fuel is most commonly used in airplanes?

Which country is famous for its high-speed bullet trains?

What type of vehicle is used to transport sick or injured people?

Which transport is the fastest?

Which vehicle is commonly used for transporting goods?

Which mode of transport does not use wheels?

What is the main purpose of a submarine?

Which vehicle is commonly used in deserts?

Which is the main public transport in cities?

Which vehicle is used for farming?