Question

how rare is gray/mostly light blue eyes and pitch-black hair/dark brown almost black hair? Please give detail on how and why? Will give brainliest.

Answer 1

It's not that common actually quite rare because gray eyes are less than 1 percent of the earth population. Being that blue eyes and black hair is considered genetically impossible gray eyes are lighter, which makes it even more most likely impossible.  
Fun fact: 10,000 years ago blue eyes didn't exist they are a mutation and everyone with blue eyes is technically related.