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en.wikipedia.org/wiki/Mesosphere

The mesosphere is the layer of the Earth's atmosphere that is directly above the stratosphere and directly below the mesopause. In the mesosphere, temperature decreases as the altitude increases. The upper boundary of the mesosphere is the mesopause, which can be the coldest naturally occurring ...

eo.ucar.edu/basics/wx_1_b.html

Living at the surface of the Earth, we are usually only aware of the events happening in the lowest layer, the troposphere, where all weather occurs. The base of ...

scied.ucar.edu/atmosphere-layers

The troposphere is the lowest layer of our atmosphere. Starting at ground level, it extends upward to about 10 km (6.2 miles or about 33,000 feet) above sea ...

www.reference.com/science/coldest-layer-earth-s-atmosphere-6fb529ae484ff2b6

Temperatures can reach lows of -90 degrees Celsius in the mesosphere, making it the coldest layer of the earth's atmosphere. The mesosphere extends above ...

www.sciencescene.com/Environmental%20Science/05Atmosphere&Climate/SUPPORT/Layers%20in%20the%20Atmosphere.htm

The troposphere is the lowest layer of the atmosphere. This is the layer where most weather takes place. Most thunderstorms don't go much above the top of the  ...

www.quora.com/Why-is-the-mesosphere-the-coldest-layer-of-Earths-atmosphere

Different wavelengths of light are absorbed by different gases in the atmosphere, most notably infrared by CO and water, and UV by ozone (O).

www.proprofs.com/discuss/q/124777/what-is-the-coldest-layer-in-atmosphere

What is the coldest layer in the atmosphere? 1. Troposphere 2. Thermosphere 3. Stratosphere 4. Mesosphere This question is part of Atmosphere - ProProfs ...

sciencing.com/layers-earths-atmosphere-temperature-decrease-20688.html

The troposphere is the lowest layer of the atmosphere and can be found between ground level and an altitude between 7 and 20 km (4 and 12 miles).

www.windows2universe.org/earth/Atmosphere/mesosphere.html

Jul 17, 2008 ... The mesosphere is a layer of Earth's atmosphere. It starts about 50 ... The top of the mesosphere is the coldest part of the atmosphere. It can get ...

ete.cet.edu/gcc/?/volcanoes_layers

mesopause—the boundary between the mesosphere and the thermosphere; the coldest place on Earth. mesosphere—the layer in which most meteors burn up ...