https://padlet.com/Jonsonleong/2puxywytgev2 Made with the strength to succeed en-us 2019-03-20 04:29:36 UTC 2025-11-18 07:32:09 UTC hello@padlet.com Jonsonleong https://padlet.com/Jonsonleong/2puxywytgev2/wish/343170924  By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. ]]> 2019-03-20 04:43:09 UTC https://padlet.com/Jonsonleong/2puxywytgev2/wish/343170924 Jonsonleong https://padlet.com/Jonsonleong/2puxywytgev2/wish/343171231  The atmosphere has a mass of about 5.15×10¹⁸ kg ]]> 2019-03-20 04:46:24 UTC https://padlet.com/Jonsonleong/2puxywytgev2/wish/343171231 Jonsonleong https://padlet.com/Jonsonleong/2puxywytgev2/wish/343171921  three quarters of which is within about 11 km (6.8 mi; 36,000 ft) of the surface. The atmosphere becomes thinner and thinner with increasing altitude, with no definite boundary between the atmosphere and outer space]]> 2019-03-20 04:53:47 UTC https://padlet.com/Jonsonleong/2puxywytgev2/wish/343171921 Jonsonleong https://padlet.com/Jonsonleong/2puxywytgev2/wish/343172195

Exosphere: 700 to 10,000 km (440 to 6,200 miles)

Thermosphere: 80 to 700 km (50 to 440 miles)

Mesosphere: 50 to 80 km (31 to 50 miles)

Stratosphere: 12 to 50 km (7 to 31 miles)

Troposphere: 0 to 12 km (0 to 7 miles)

]]> 2019-03-20 04:56:40 UTC https://padlet.com/Jonsonleong/2puxywytgev2/wish/343172195 Jonsonleong https://padlet.com/Jonsonleong/2puxywytgev2/wish/343172260 2019-03-20 04:57:27 UTC https://padlet.com/Jonsonleong/2puxywytgev2/wish/343172260