Sinkhole Sinkhole A sinkhole, also known as a cenote, sink, sink-hole, swallet, swallow hole, or doline (the different terms for sinkholes are often used interchangeably), is a depression or hole in the ground caused by some form of collapse of the surface layer. Most are caused by karst processes—for example, the chemical dissolution of carbonate rocks or suffosion processes. Sinkholes vary in size from both in diameter and depth, and vary in form from soil-lined bowls to bedrock-edged chasms. Sinkholes may form gradually or suddenly, and are found worldwide. Sinkholes may capture surface drainage from running or standing water, but may
A Rickle in Time being and instructs Morty and Summer to break off their collars, but the resulting chain of uncertainty further splits their realities into dozens of different timelines. After defeating the testicle monster, Rick notes that time is falling apart. Summer's collar transports her back to her time, but one of the Mortys' collar is broken. With the garage falling away piece by piece, the Morty with the broken collar falls into the spaceless void and Rick jumps after him. He gives Morty his collar and instead prepares to face death. But then, Rick spots Morty's collar floating below him, fixes it,