The two main gases found in the troposphere are nitrogen (about 78%) and oxygen (about 21%). These gases make up the majority of the Earth's atmosphere and are essential for supporting life.
The two main gases in Earth's lower atmosphere are nitrogen (around 78%) and oxygen (around 21%). These two gases make up the bulk of the atmosphere and are crucial for supporting life on Earth.
The two main gases in Earth's atmosphere are nitrogen (approximately 78%) and oxygen (approximately 21%).
The two main gases that make up the air you breathe are nitrogen (approximately 78%) and oxygen (approximately 21%).
The two main components of Earth's atmosphere are nitrogen (about 78%) and oxygen (about 21%). Together, they make up the majority of the gases present in the atmosphere.
The two main gases in the Earth's atmosphere are nitrogen (about 78%) and oxygen (about 21%).
Hydrogen and Helium
Hydrogen and helium are the two main gases in the Universe.
There are not two gases in the layer but one. Ozone is the only gas present in the ozone layer.
canada
Two main gases exchange in the lungs: oxygen and carbon dioxide.
carbon dioxide and nitrogen
usually Argon or Nitrogen
Hydrogen and helium
amonia, hydrogen,
helium and hydroen
Oxygen Carbon dioxide