Henry made a model of a cross section of the Earth out of a piece of wood. He painted his model to show the different layers of the Earth. His model looks similar to the given image. Henry would like for his model to show the structure and relationship of the Earth's layers. How is Henry's model limited from showing this? A. The inner core of the model does not touch the Earth's surface. B. The crust of the model has different features from the mantle. C. The crust of the model cannot move over the mantle. D. The layers of the model do not have the same thickness.

The bergeron process.

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.