What is a Black Hole? April 9, 2021 / By Preparation Point / Tehsildar PPSC Past Papers Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA) Star (B) Venice Moon (C) Glacier (D) Hypothetical region in space ✓ Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn