Both can be correct depending on the context. 'Life story' is a common phrase referring to the entire account of someone's life. 'Life's story' might be used to emphasize that it's specifically the story belonging to or about a particular life.
The correct one is 'a story'. 'An' is used before a vowel sound, and 'story' begins with a consonant sound.
The story 'Life of Pi' isn't directly based on a specific true life. It's a fictional creation by the author Yann Martel.
The main difference is in the grammar. 'life's story' uses the possessive's, which gives a sense of ownership. 'life story' is a simple noun phrase. If you say 'I read his life's story', it's clear whose story it is. But when you say 'I read a life story', it could be anyone's story.
Well, in most cases, 'life story' and 'life's story' can be quite similar. 'Life story' is a more common and general way of referring to the story of someone's life. For example, 'She told me her life story.' 'Life's story' is a bit more possessive in form, but it essentially means the same thing. You could say 'The book is about the life's story of that great man.' But really, they are interchangeable in many contexts.
It's hard to say for sure which specific parts are completely true. The whole story is a blend of imagination and possible real experiences.
The song 'Story of My Life' can be found on the 'Midnight Memories' album. One Direction's music on this album showcased their evolving style and musical growth.
It's difficult to say for sure which specific story is completely true. The entire narrative is complex and open to interpretation.
It's hard to determine exactly which part was truly based on reality. The entire story is a blend of imagination and possible real experiences.
It's hard to say for sure. Some parts of the story could be based on real experiences, but it's a fictional work with elements of imagination.
It's hard to determine exactly which story was true as both had elements that seemed plausible. Maybe it's a matter of interpretation.