You are interested in studying how the amount of rain affects the rate of erosion of a mountain. In order to complete this investigation, you create a model of a mountain. Your model mountain is made out of sand and your rain is modeled by water dropped from a pipette (same tool as a dropper). Analyze the diagram of your model below. You create four identical sand mountains. Every day you drop a certain amount of water on each mountain. You do this for 5 days. To measure the erosion of the mountain, you determine the height of the mountain every day. You collect the data below. What conclusion can you draw based on your experiment?