The pathway must be closed for the current flow to make a complete circuit

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Which describes increasing the efficiency of energy resource

(asap) uneven heating of the earth's surface is due primarily to the position of the equator, north pole, sun, or moon?