why do the processes and events dating back to the big bang eventually led to the existence of life on earth

Stars are formed such that their death led to the creation of life.

Explanation:

The Big Bang theory was developed in 1927. This theory helps to understand how the universe was created. According to this theory, hydrogen gas was created through a process of expansion and explosion. As a result, stars are formed such that their death led to the creation of life.

Earth formed around 4.54 billion years ago which is equal to approximately one-third of the age of the universe.