I think that the answer to the question is C
The statements which best describes the differences between a memoir and a biography are:
--A memoir relies on the narrator’s memory, while a biography relies on various other sources.
A memoir is a record of someone's own experiences or moments of his/her life while a biography is a more factual record of someone's life and it usually involves research by the author.
--A memoir talks about a limited experience in a person’s life, while a biography deals with a larger part.
Generally, a memoir retells some specific facts, experiences or moments in a person's life while a biography tells the whole story of someone's entire life or a large part of it.
Answer: minerals are formed naturally by geological processes :)
