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Di azote<br />
Di oxygène<br />
Dioxyde de carbone<br />
Argon<br />
H2O CO2 H2 CH4<br />
Algues bleues<br />
Lavoisier XVIIIeme siècle<br />
N2<br />
O2<br />
CO2<br />
Ar<br />
11/05/2005 <strong>Physique</strong> Chimie <strong>4eme</strong><br />
Chapitre 1. L’air<br />
0.034<br />
78.1<br />
20.9<br />
0.93<br />
78 %<br />
21 %<br />
0.03 %<br />
0.93 %<br />
N2 O2 Autres gaz<br />
2
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