oxygen . hey people googling there science hw. join the club :)
The gas that makes up 93% of Earth's atmosphere is nitrogen. Oxygen is the second most abundant gas, making up around 21%.
oxygen
try ionzide
troposphere
20.946% by volum.
Argon makes up nearly 1% of Earth's atmosphere. It is a noble gas that is colorless, odorless, and inert.
Oxygen is the gas that accounts for about 20 percent of Earth's atmosphere.
Argon makes up nearly 1 percent of Earth's atmosphere. It is a colorless, odorless, and inert gas that is part of the noble gas group.
Nitrogen makes up about 78 percent of Earth's atmosphere.
Approximately 20 percent of the Earth's atmosphere is made up of oxygen.
Nitrogen, it actually makes up just over 78% of the Earths atmosphere by volume.
Argon makes up roughly one percent of Earth's atmospheric gases. A more precise/exact amount would be 0.93%
The gas that makes up 93% of Earth's atmosphere is nitrogen. Oxygen is the second most abundant gas, making up around 21%.
None, if the Wkipedia entry is to be believed. See link http://en.wikipedia.org/wiki/Atmosphere#Composition
gas-gas
Argon is nearly 1% (~.93%) with uniform distribution. Water vapor (water that has been evaporated which converts it from liquid to gas) varies from 0 to 4%, but is on an average of 1%.
Argon is nearly 1% (~.93%) with uniform distribution. Water vapor (water that has been evaporated which converts it from liquid to gas) varies from 0 to 4%, but is on an average of 1%.