All plant and animal live requires oxygen to survive
The most important gas is oxygen.
The most important gas is oxygen
Oxygen
Oxygen is the gas in the atmosphere that is important for respiration. It is needed by cells to generate energy through the process of cellular respiration.
oxygen
Oxygen
Oxygen
Oxygen
Oxygen
no because some people think another gas is important
the most abundant gas is nitrogen answered by Isabella camera 10/18/10
hi me know the anser but I is not telling u!!