Danielle took an iron nail a trap death in a copper wire around it didn't connect to the end of a copper wire to a battery which force or forces can Danielle lights produce.

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: