Which of the following is the best example of chemical weathering? a: limestone rocks dissolving in water b: plant roots growing through concrete and splitting it c: waves carrying sand away from a beach d: a large rock splitting into pieces because of ice

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 ?