Chapter,  Paragraph

1 15,3|      due to plate movement and volcanic activity. A heavy cloud
2 15,3|  enveloped in a heavy cloud of volcanic gases, steam and carbon
3 15,3|     earth started to clear. As volcanic gases and ash settle, single-celled
4 15,4| cleansing of the atmosphere of volcanic ash, steam, and carbon dioxide.
5 19,1|        erosion, tectonics, and volcanic activity packed into a few
6 19,1|        erosion, tectonics, and volcanic activity would be easily
7 19,1|   shred of evidence for recent volcanic activity and erosion on