Saved Bookmarks
| 1. |
The most abundant constituent of atmospheric air is : |
|
Answer» Nitrogen AIR is the name given to the atmosphere USED in breathing and photosynthesis. DRY air CONTAINS roughly (by VOLUME) 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases. |
|