Look at the attachment.
1) Referring to 5.5.2 in http://opengeology.org/textbook/ (Links to an external
site.)Links to an external site. explain what a reef is, how it forms and why a coral
reefs’ growing habit makes them useful to the geologic record .
2) Referring to 5.5.2 in http://opengeology.org/textbook/ (Links to an external
site.)Links to an external site. describe the three contributing factors to the 1925 Gros
Ventre rock slide.