What is breadcrumbs in SEO

What is breadcrumbs in SEO and Is there any importance of this in SEO…

As I’ve said to you elsewhere, you could easily find an answer to this for yourself with a quick internet search. I tried that, and the first result I found was this, which answers your question in detail.

Please take the trouble to do a little research of your own in future, and only post here if you’ve been unable to find any answers, or there’s a specific point which you don’t understand.