One group of students made a local watershed model. the watershed model was most likely used by the students to select one: a. demonstrate pollution of water at the location b. forecast floods and droughts at the location c. investigate the amount of rain water used at the location d. forecast the amount of precipitation falling at the location

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question