I would say either nitrogen or oxygen.
The four thing you need to stay alive are: Oxygen, water, Food, and Air
Air, seaweed, and stay out of the way of jaws.
water, food, shelter, air and blood
The basics: air water, and food. Also: clothing and shelter.
They are mammals like we are and they need air, water and food. The food they eat can range from insects, fruit and small animals..
Yes, cats love to eat air it helps them stay alive.
Phosphorus
because inhale air is oxygen and due to that we stay alive
Because one of the basic things your body needs is oxygen. And breathing allows the body to collect oxygen from the air going into the lungs.
I do not need an air duck but thank you for asking. Please stay in school.
It can cause a very painful death, due to air embolism, as the heart starves for blood to stay alive.
Mostly Oxygen and Nytrogen for breathing. And CO2/CO3 for the Atmosphere.