Driver & Pilot!
Cars run autonomously now, and UAVs like the following does not require a pilot. And BTW I am not talking of humans. Its the part of aircraft and a car.
Driver & Pilot!
Sperm donor ?
Sperm donor ?
Husband?
It's not?Is this a profession?
If I gave the answer, you would agree that the answer was right. and without that it is not possible to drive car or fly an aircraft.
This is something indispensable if you want these two things to work.
Hence the question is not opaque.
My dear, question require clarity on terms... if you are asking about material require to produce car or functioning (running) of car?
bell boy
What is that item without which cars & aircrafts wont be able to function.
What more clarity do you want other than above?
Bellboy is an American parlance and its British counterpart is porter (one who handles baggage). Porter means coolie in India.
And they are working in India officially with a badge or license. Common in India.
Life of first woman coolie at Jaipur railway station - Not your average porter
Manju Devi stands tall in her fraternity, being the first woman porter of the North-West Railways, in a profession that is considered a male bastion. She has been the sole breadwinner for her three teenage children. She lost her husband 10 years ago. Not your average portereconomictimes.indiatimes.com
There are many items, if missing from cars & aircrafts, they wont be able to drive /fly.