Oxygen
Oxygen is the second most common/abundant gas in the air that we breathe. Nitrogen is the most abundant gas in the air we breathe. The composition of air is often treated as 79 mole or volume percent N2 and 21 mole or volume percent O2.
without air it cant breathe.
Oxygen it helps the trees breathe too.
The most abundant gas in the air we breathe is nitrogen, which makes up about 78% of Earth's atmosphere. Oxygen is the second most abundant gas, making up about 21%.
Betta fish breathe air....yes... that's right... they breathe air. They breathe air because they have an organ by their gills that is called the Labyrinth's Organ which allows them to breathe air. They breathe air by coming up to the surface of the water. Then they gather air in their mouths and hold their breath underwater.
They breathe air with lungs.
They do breathe air.
Nitrogen and Oxygen
Betta fish breathe air....yes... that's right... they breathe air. They breathe air because they have an organ by their gills that is called the Labyrinth's Organ which allows them to breathe air. They breathe air by coming up to the surface of the water. Then they gather air in their mouths and hold their breath underwater.
Approximately 21% of the air we breathe is oxygen. This concentration is consistent across most elevations and locations on Earth.
Yes, cheetahs do breathe air.