What is air?

Air is an addictive gas. When you breathe it for 80 years or more, you will die. If you are addicted to air and don't breathe it for about 5 minutos or more, you will die. :3

Is this a reference to that video?

WTF!!!??I honestly can say that this is the stupidest pergunta i have heard alllll dayy! and that is not an exaggeration!

air

noun /e(ə)r/ 
airs, plural

The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen

This substance regarded as necessary for breathing
- the air was stale
- the doctor told me to get some fresh air

The free or unconfined o espaço above the surface of the earth
- he celebrated por tossing his hat high in the air

Used to indicate that something involves the use of aircraft
- air travel

The earth's atmosphere as a medium for transmitting radio waves
- radio stations have successfully sold products over the air

Air considered as one of the four elements in ancient philosophy and in astrologia (associated with the signs of Gemini, Aquarius, and Libra)

A breeze or light wind

Air conditioning

A jump off the ground on a snowboard

An impression of a quality or manner given por someone or something
- she answered with a faint air of boredom

An annoyingly affected and condescending manner
- he began to put on airs and think he could boss us around

A tune or short melodious composition, typically a song

verb /e(ə)r/ 
aired, past participle; aired, past tense; airing, present participle; airs, 3rd person singular present

Express (an opinion or grievance) publicly
- a meeting in which long-standing grievances were aired

Broadcast (a program) on radio or television
- the programs were aired on India's state TV network

Parade or show (something) ostentatiously
- airing a snowy hand and signet ring

Expose (a room) to the open air in order to ventilate it
- the window sashes were lifted regularly to air the room

Go out in the fresh air

The invisible thing we breath in....

Air.

you know that thing you breath .. to survive

The invisible stuff that's keeping you alive right now.

Mr. Seid (my former science teacher, pronounced Side) taught me this but I refuse to try and remember IT'S SUMMER WHO CARES?

Oxygen

Oxygen+CO2+other substances

well air is invisible because when we run the air goes on our faces

The thing you breath in