0.4%
Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78%. Oxygen is the second most abundant, at around 21%. The remaining 1% consists of trace gases such as argon, carbon dioxide, and others.
Nitrogen and oxygen make up about 99% of the Earth's atmosphere. Nitrogen accounts for about 78% and oxygen for about 21%.
Among well-characterized compounds, lithium carbide probably contains the highest percentage of carbon by mass. However, it might well be possible to make a compound with more carbon by inducing one substitution on graphene or one of the other multi-atomic forms of carbon.
Most of Earth's dry air is made up of nitrogen (approximately 78%) and oxygen (approximately 21%). Other gases such as argon, carbon dioxide, and trace amounts of other gases make up the remaining percentage.
The Earth's atmosphere is primarily composed of nitrogen (about 78%) and oxygen (about 21%). Other gases like argon, carbon dioxide, and trace gases make up the remaining percentage in smaller proportions.
Geranium
Deserts make up 33% of the Land's surface
Carbon dioxide used to make up most of Earth's early atmosphere.
it will make the earth hotter
Plants are big carbon sinks, they make there parts with carbon compounds and they take in a lot of the carbon dioxide pumped into the air by humans.
It depends on what aspect of the environment you are looking to improve. In any environment, it is the native species which are the best.
Recycle,reduce amount of carbon, exercise spread the word about cleaning the environment
78% nitrogen, 21% oxygen, 1% carbon dioxide and other minute gases
Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78%. Oxygen is the second most abundant, at around 21%. The remaining 1% consists of trace gases such as argon, carbon dioxide, and others.
Nitrogen and oxygen make up about 99% of the Earth's atmosphere. Nitrogen accounts for about 78% and oxygen for about 21%.
Among well-characterized compounds, lithium carbide probably contains the highest percentage of carbon by mass. However, it might well be possible to make a compound with more carbon by inducing one substitution on graphene or one of the other multi-atomic forms of carbon.
Nitrogen Gas makes up about 80% of Earths atmosphere with Oxygen making up most of the rest (20%).