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The composition of the atmosphere remains stable at all altitudes: nitrogen and oxygen represent 99% of its volume. Other gases, including argon and neon, are also found in air, but in much smaller quantities. The proportions of water vapor and carbon dioxide in the atmosphere vary, but are always very small.
Crédit: Album / Universal Images Group
Taille de l'image: 2028 × 2024 px | 11.7 MB
Taille d'impression: 17.2 × 17.1 cm | 798.4 × 796.9 in (300 dpi)