This is too harsh, hope this is not being practiced anymore in all Arab countries..
To bury your daughters alive: It is not seen now but it was a cruel practice in Arab before Prophet's (PBUH) arrival. To some extent, it still exists. Some parents or family terminate a pregnancy when they come to know(from earlier USG) that the unborn child is a girl. This is forbidden.
We all hope that sir.
Thanks for the valuable comment.