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The two most abundant gases in the Earth’s atmosphere are nitrogen and oxygen. The atmosphere contains approximately 78 percent nitrogen and about 21 percent oxygen. The Earth’s at...

Atmosphere of Earth


Composition of Earth's atmosphere by volume. The lower pie represents the trace gases that together compose about 0.038% of the atmosphere (0.043% with ...

Gases of the Air


The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing ... vapor, argon, and carbon dioxide, and very small amounts of other gases.

The Compositon of the Atmosphere


Nitrogen cannot be used directly from the air. The Nitrogen Cycle is ... F. Trace gases - gases found only in very small amounts. They include neon, helium, ...

The addition of oxygen occurred slowly from about 3.5 billion years ago to about 2.5 billion years ago. Once respiration was able to take place, accelerated oxygen buildup in the atmosphere occurred. Discovery: In the late 1700s, three people dedicated time to finding... More »
By Rachelle Oblack, About.com Guide

air | atmospheric gas | Britannica.com


Feb 11, 2015 ... Air, mixture of gases comprising the Earth's atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group ...

Gases In The Atmosphere - Universe Today


Jan 7, 2010 ... There are different gases in the atmosphere. There's nitrogen (the most abundant of them all), oxygen, and argon. There are of course a lot ...

Earth's Atmosphere | UCAR Center for Science Education


Earth's atmosphere is a mixture of gases that surrounds our home planet. Besides providing us with something to breathe, the atmosphere helps make life on ...

BBC - GCSE Bitesize: Composition of the Earth's atmosphere


The Earth's atmosphere has remained much the same for the past 200 million years. The pie chart shows the proportions of the main gases in the atmosphere.

Atmospheric Gases | Linde Industrial Gases


The air we breathe is a mixture of various gases, each with its own unique properties that are invaluable for so many industrial processes and medical therapies.

Popular Q&A
Q: What are the gases in the atmosphere on Venus?
A: 95% Carbon Dioxide 3% Nitrogen 2% Oxagen. Read More »
Source: wiki.answers.com
Q: What are the gases in the atmosphere of Jupiter?
A: Jupiter's atmosphere is mainly Hydrogen (around 90% Helium (around 10% with small amounts (minor gases) of Methane (around 0.3% Ammonia (0.026% Hydrogen Deuteri... Read More »
Source: wiki.answers.com
Q: What is the percentages of gases in the atmosphere?
A: The atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carb... Read More »
Source: www.chacha.com
Q: What are the chief gases of the atmosphere
A: Nitrogen and Oxygen make up 78 and 21 percent of the atmosphere, re... ...MORE... Read More »
Source: www.chacha.com
Q: What are the dominant gases in the atmosphere?
A: The three most abundant are nitrogen, oxygen and argon. A very important gas is water vapor, but it makes up less than one percent. Read More »
Source: answers.yahoo.com