h2o
Oxygen
oxygen
Oxygen and carbon dioxide.
Oxygen and nitrogen are the two most abundant gases in the atmosphere. They make up 99% of the air.
oxygen, nitrogen, carbon dioxide, rare gases
Oxygen
The main gases that make up the air we breathe are nitrogen (about 78%) and oxygen (about 21%). Other gases present in smaller amounts include argon, carbon dioxide, and trace gases such as neon and helium.
I am looking for the exact same answer I know one of the gases should be oxygen
The two main gases that make up the troposhpere are nitrogen comprising around 78% and oxygen taking up 20.9% of the troposphere.
in order to survive
They change gases through their skin. They ubsorb the oxygen they need.
Oxygen and nitrogen.