Explain what is meant by the terms nature-nuture. What is the controversy posed by this issue?

Explain what is meant by the terms nature-nuture. What is the controversy posed by this issue? I seem to not understand it by reading the book at all.

Nature versus NurtureNature means the genes of a person that regulate his behaviour and a person gets thesegenes from his parents or grandparents as comes through hereditary while nurture means...