Earth's atmosphere has approximately 50% of its mass under 6 kilometers elevation, 90% below 16 kilometers, and 99% below 30 kilometers of altitude.
Earth’s atmosphere has approximately 50 % of its mass under 6 kilometers elevation, 90 % below 16 kilometers, and 99 % below 30 kilometers of altitude.-- >Природные горы достигают высот до 9 км.