I’m pretty sure it’s called the tectonic plate theory
Answer:
most dangerous geologic hazards are earthquakes
Explanation:
most dangerous geologic hazards are earthquakes
because
we know that Geological hazards occur because of geological processes that is movement in the tectonic plates and the volcanic activity
and due to movement of tectonic plate it generate the earthquake , landslide and volcanic etc
so here earthquake is more danger and hazards because volcanic and landslide most come in hilly area and density of people is more in plane surface as compare to hilly area
so most dangerous geologic hazards are earthquakes
I would say that in very fast moving water such as in a river, the cobble size could be transported because cobbles are 64-256mm so are quite big and in a quiescent stream won't move much but in a freshet say in a steep mountain stream they can be rolled along such as I observed in the local streams at a mining town during the Hurricane Fifi in Honduras in 1974.