No one gas comprises 99% of the atmosphere, but nitrogen (~78.09%) and oxygen (~20.95%) together comprise about 99% of the atmosphere (on a dry basis, i.e. not including water vapor which can range from near 0% to 5%).
Nitrogen 80%
Oxygen 20%
rainbow form by the sunlight after the rain
Salt water (in the form of oceans, seas and straits).
They look at the mineral composition of the rocks. There are some minerals that can only form in the presence of oxygen.
what causes changes to earths landform
In the atmosphere, in the form of carbon dioxide
As you go higher in the atmosphere the gases start to compose or join together which causes them to change since there is mixture of more than one gas. Sometimes they form a different element when certain gases form.
As the gases go higher in the atmosphere they start to compose or join together at some point which causes them to change since there is mixture of more than one gas, sometimes they form a different element when certain gases form
As the gases go higher in the atmosphere they start to compose or join together at some point which causes them to change since there is mixture of more than one gas, sometimes they form a different element when certain gases form
The gas which help in forming the earth's protective shield is ozone gas. It is present in the atmosphere as the ozone layer in the stratospheric regionof atmosphere.
By the earths atmosphere
rainbow form by the sunlight after the rain
In the atmosphere, in the form of carbon dioxide
precambrian era
"there is no liquid in the earths atmosphere. There are only gases. Nitrogen makes up the largest percent. approx. 72% I believe" ...I'm sorry to disappointed you but you know those things called clouds? They aren't steam, they're water molecules suspended in the gases that make up the air. That's also what humidity is, the level of water suspended in the air. By water I mean the liquid form of H2O as opposed to Steam or Ice.
oxygen, nitrogen, hydrogen, and carbon dioxyde
The Earth's atmosphere is made mainly of nitrogen(78%) and oxygen(21%) and small amount of argon(0.93%) and CO2 (0.03%) and other gases(0.04%)
The Earth's atmosphere works to keep the planet warm in the same way as a greenhouse. Warmth comes in the form of the sun's rays as it passes through the atmosphere. It is then kept from escaping back into space by greenhouse gases like carbon dioxide, methane and even water vapour.