Explanation

The coldest city in the world is Yakutsk

Yakutsk has an average annual temperature of −8.0 °C (17.6 °F) winter high temperatures consistently well below −20 °C (−4 °F), and a record low of −64.4 °C (−83.9 °F)

Top  coldest place on the Earth is:

1) Eastern Antarctic Plateau, Antarctica (-94°C) 

2) Vostok Station Antarctica (-89.2°C) 

3) Amundsen-Scott Station, Antarctica (-82.8°C)

4) Denali, Alaska, United States of America (-73°C) 

5) Klinck station, Greenland (-69.6°C) 

6) Oymyakon, Siberia, Russia (-67.7°C)

 while 

Which of the following is the coldest capital city of the world? Ulaanbaatar

The coldest region in the atmosphere is the? mesosphere