Can anyone answer the questions on aviation metrology?

1. How is the height of the troposphere affected by ground temperature and pressure? Is higher ground temperature means higher troposphere height?

2. Someone said there is temperature inversion when the ground temperature is low. What is the temperature inversion rate for different sea level temperature?

3. If the rule of temperature inversion is true, then how to explain the extremely low temperature of Vostok, which is over 3000m above sea level, and has minimum temperature of -88C? What is the temperature inversion rate for different land height?

4. Can anyone tell me the height of ozone layer?

5. Can anyone tell me what is the speed of sound at different height at different ground temperature and pressure?

Please answer the questions with figures stating the characteristics of the atmosphere.

Thanks.