Which best explains why people see carrots as orange

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.