The earth's atmosphere level and its relevant data are illustrated in the diagram. Overall, it is noticeable that there are 5 scales of earth's atmosphere. The more length diameter of the earth's atmosphere is, the less number of the atmospheric molecule will be.
The first atmosphere is Troposphere, which is the shortest diameter throughout the others. It is only 15KM diameter. However, this atmosphere has lofty atmospheric molecule at 75%. The second is Stratosphere, wherein its diameter doubles larger than Troposphere. But, the percentage of molecules is smaller. It is twenty four percent. Then, the third is Mesosphere. The diameter is similar to the Troposphere, and it only has few molecules.
The following atmosphere is Thermosphere. Contrary to the prior atmospheres, this forth atmosphere, possess very few molecules. However, the diameter is much larger, it is 550KM. Then, the last atmosphere is Exosphere, which is the longest diameter at 65,000 KM. But, the molecules atmospheric are extremely rare in comparison to the other atmosphere.