When building electric circuits, and resistor(s)).

flow along the path (wires, energy source,

electrons

protons

matter

neutrons

its first and third is your answer i did the qustion the fourth isnt right

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

diaria maybe go see a doctor about that