Greenhouse gases can be removed from the atmosphere by various processes, as a consequence of: 1  a physical change (condensation and precipitation remove water vapor from the atmosphere). 2  a chemical reaction within the atmosphere. 3  a physical exchange between the atmosphere and the other compartments of the planet.
What we can say is that the vast majority of people infected with HIV will develop AIDS sometime during their life (an average of 10 years or more after infection), and with early intervention and treatment, they could potentially live with AIDS for many years more.
The progression of Alzheimerâs disease. On average people live eight to ten years from the time first symptoms emerge. However, life expectancy varies considerably depending on how old a person is when symptoms begin. A person diagnosed in their 60âs will live longer than someone diagnosed in their 90âs.