20 Safest Cities in Tennessee: Safest Places to Live in TN. 6. Mount Carmel, TN. Mount Carmel, TN is the smallest city on our list and is situated in the northeast tip of the state. It is found in the part of Tennessee referred to as the Tri-Cities region and is a part of the fastest growing area there.
The mesosphere (/ Ë m É s oÊ s f ÉªÉr /; from Greek mesos middle and sphaira sphere) 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 place on Earth[citation needed] with temperatures below â143 Â°C (â225 Â°F; 130 K).
  The Mesosphere In the Earth's mesosphere, the air is relatively mixed together and the temperature decreases with altitude. The atmosphere reaches its coldest temperature of around -90Â°C in the mesosphere. This is also the layer in which a lot of meteors burn up while entering the Earth's atmosphere.he troposphere is the lowest layer of the atmosphere; it begins at the surface and extends to between 7 km (23,000 ft) at the poles and 17 km (60,000 ft) at the equator, with some variation due to weather factors.