Which model is the best for identifying geometric isomers? structural formula skeletal formula space-filling model ball-and-stick model

Alarge marble is dropped in a graduated cylinder with 35ml of water in it.the water level increases to 49ml.what is the volume of the marble

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

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 ?