What part of Abel cried out to God from the ground?

ANSWER

Abel's blood

Genesis 4 :

10 The LORD said, "What have you done? Listen! Your brother's blood cries out to me from the ground. 11 Now you are under a curse and driven from the ground, which opened its mouth to receive your brother's blood from your hand.
Play Our Bible Trivia Game
Can You Light All 30 Candles?