~75% nitrogen. ~25% oxygen. + tiny fraction of other stuff
======================================
Less than 0.001% :
Less than 0.0001%
Less than 0.00001%
Water vapor . . .
78% Nitrogen, 21 Oxygen, and 1% other gases.
nitrogen, oxygen, and trace amounts of other gases
Study Island (Q)
Mostly nitrogen (~78-79%), oxygen (~20%), and a little carbon dioxide, argon, other gasses.
The atmosphere of Earth is made up of mostly nitrogen. Other gases present in the atmosphere are oxygen, carbon dioxide, and argon.
78% nitrogen 21% oxygen, 0.9% argon 0.003% carbon dioxide and other small elements
carbon dioxide, argon, nitrogen
the earth first atmosphere is troposphere
oxygen
Nitrogen makes up about 78 percent of Earth's atmosphere.
Without its oxygen content the Earth's atmosphere would be composed almost entirely of nitrogen and would be chemically inert; oxygen causes the atmosphere to be chemically active (and breathable by humans).
The earth's atmosphere is composed as follows:nitrogen: 78%oxygen: 21%argon: 0.9%trace gases make up the remaining less than 0.1% - these include carbon dioxide, neon, helium, methane, krypton, and hydrogen, and the barest amounts of many others
the earth first atmosphere is troposphere
Nitrogen accounts for 78% of the atmosphere.
oxygen
the entire atmosphere...
the entire atmosphere...
the entire atmosphere...
Nitrogen makes up about 78 percent of Earth's atmosphere.
nitrogen,oxygen,carbon dioxide,argon, and other gases in small amounts
Without its oxygen content the Earth's atmosphere would be composed almost entirely of nitrogen and would be chemically inert; oxygen causes the atmosphere to be chemically active (and breathable by humans).
The earth's atmosphere is composed as follows:nitrogen: 78%oxygen: 21%argon: 0.9%trace gases make up the remaining less than 0.1% - these include carbon dioxide, neon, helium, methane, krypton, and hydrogen, and the barest amounts of many others
Our thin atmosphere is composed of 78.08% nitrogen, 20.95%, about 1% water vapor (depending on the climate), 0.93% argon, and 0.039% carbon dioxide.
1. there are five layers of the atmosphere 2. it is composed of the gas nitrogen (N) and oxygen (O) mainly 3. nitrogen (N) occupies 78% of the atmosphere 4. oxugen (O) occupies 21% of the atmosohere