Indoor air pollution has increased as improvements have been made in . A) heating and air-conditioning systems B) radon-resistant construction techniques C) energy conservation in the home D) green building construction E) all of these choices contribute to indoor air pollution

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

True or false graphs must include scales that increase by the same amount

Give an example in which the electrical energy changes to light energy