Becoming agile and incorporating Scrum principles is a process. It takes diligence, patience, practice and a commitment to continuous improvement. Agile Project Management for Dummies author Mark Layton (MBA2, CST, PMP, SCPM) provides training on Agile and Scrum through certified classes from Platinum Edge!
The summit craters represent the junction area of the volcanic activity through which breathes the persistent vent of Etna, and in more or less regular intervals, are the site of explosive events of various types as: Strombolian obstruction phreatic activities etc. that continually change the morphology.
The mountains and the flat plains on the moon do not surprise us, for the earth has many such features. The lunar craters, however, tease and puzzle us. Most of them are round pits ringed with steep walls, somewhat like Meteor Crater in Arizona. For a long time many experts thought that the lunar craters also were caused by falling meteors.