Based on the clue 'a crack in the earths crust', what is the answer?

Based on the clue 'a cows stomach has this many compartments', what is the answer? Based on the clue 'a cozy cave for a bear or a cozy room in your hous...', what is the answer? Based on the clue 'a crab eating variety of this mammal lives in nort...', what is the answer? Based on the clue 'a crab thats sold as soft shelled is one that has ...', what is the answer? Based on the clue 'a crack that allows something to escape from a con...', what is the answer? Based on the clue 'a cracker is named for this 19th century man who a...', what is the answer? Based on the clue 'a cracker is named for this dietary reformer who a...', what is the answer? What is referred to by 'a cradle song 7'?