SinkholeseBook - 2016
A sinkhole is exactly what it sounds like: a giant, sinking hole in the earth! They happen in almost every state and every country. They have been carving out Earth's landscape for millions of years. Learn all about the causes, warning signs, and what to do in case you encounter one of these terrifying and sometimes deadly disasters.
Publisher: [Mankato, Minnesota] : Rourke Educational Media, 
Copyright Date: ©2016
Characteristics: 1 online resource : color illustrations.