It means similarities between two or more things... Is that what you were looking for?
I think the answer is A.
But correct me if I’m wrong
I hope this helps :)
Answer: Their population will rapidly decrease in till eventually they are no longer.
Explanation: Due to having less and less area to nest, the costal bird species population will slowly start to decline.
Industrialization occurs when machines and industry are introduced and occur on a large scale.