What is environment?

What is environmental chemistry?

What is the temperature range of the atmosphere?

In what regions of the atmosphere, the temperature increases with altitude and in which regions it decreases?

What is the size range of particulates?

How particulates help in the cloud formation?

Name three gases which are major air pollutants. 

What are primary and secondary pollutants of the air?

Which zone is called ionosphere?

What gaseous species are present in the mesosphere and thermosphere?