How did Democritus figure out that the atom could not be cut (actually he was wrong, but, nonetheless, I still want to know how he got his theory).

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?