I have no idea!
Wasted your time punk!
When did people start to change the atmosphere by releasing gases
- A mixture of gases- A chemical reaction producing a compound
AcetyleneArgon
The carbon dioxide and oxygen are the two main gases in plasma. When blood travels to the lungs the concentration of these two gases changes.
Gases. grams
dimethylamine
dimethylamine
These gases are hydrogen and helium.
Hydrogen and helium are the two main gases in the Universe.
The main gases in Earth's atmosphere are nitrogen, followed by oxygen.
There are more than two gases in the atmosphere. You need to specify the ones you are asking about.
two greenhouse gases are carbon dioxide and methane