Al Jazeera is no more propagandistic than our major papers. More of your viewers and readers of this and PBS should take a few minutes and access Al Jazeera online. They even let you sign in to access it more easily the next time.. It must be considered that in nature is also present, next to the mechanic role of abrasion and comminution, chemical processes like the fluids action on the rock during fragmentation (mineral dissolution, secondary mineral precipitation, etc.).…