Which of the three biogeochemical cycles did not have a presence in the atmosphere?

the russian revolution of 1917 involved the collapse of an empire under tsar nicholas ii and the rise of marxian socialism under lenin and his bolsheviks.

the buddha identified ways to end suffering and attain minerva, which is the ultimate goal of buddhism. for this purpose, he came up with the concept of the four noble truths, which were crucial to ending suffering. the last of these truths stressed following the eightfold path , which is a series of steps that allow you to live life in a proper manner. these steps would make sure that you would follow the or live life in moderation.

the eightfold path has 8 practices which are:

dylan has written many enduring songs and he has received several awards for his musical achievement;  

any written work with artistic value can be considered literature; especially if such work is publicly recognized, and has had importance and endurance among people; whether is poetry or fiction or drama or even criticism, since it's the transcendence and representation of a culture, language or people in a period of time to more people, using letters (words), regardless the subject.

the nobel prize in literature is given to authors from any country based on a body of work as a whole that inspires and nurses the life of humanity.  

and the work of bob dylan matches that description, therefore is well deserved since he'd created new poetic expressions within the american song tradition, that has inspired and influenced the lives of many people, not only withing the united stated but worldwide as well.