Compare and contrast the thermosphere with the troposphere

The troposhere is the lowest layer of the Earth's atmosphere and the thermosphere is the second, above the mesosphere and below the exosphere. 
Thermosphere is the largest of all the layers. It is within the thermosphere that ultraradiation causes ionization. 
The troposhere is where 99% of the water vapor and aerosols are found. It is denser than the layers above it because of the weight compressing it. The troposphere as well contains approximately 75% of the mass of the atmosphere. Most of the world's weather takes place in the troposhere.