caption: The Atmosphere Earth s atmosphere contains roughly: 78% nitrogen
exif: {"Image DocumentName": "The Atmosphere Earth s atmosphere contains roughly: 78% nitrogen", "Image ImageDescription": "20.95% oxygen. 0.93% argon % carbon dioxide. Trace gases. 1% water vapour. The Earth\u2019s atmosphere (where pressure becomes negligible) is over 140 km thick. Compared to the bulk of the planet, this is an extremely thin barrier between the hospitable and the inhospitable. All images: NASA.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}