In the process of pair-creation by a high-energy photon, energy is
A) conserved. B) created. C) destroyed.
Question 2
Which of these, if used to replace gasoline as an automobile fuel, would not contribute to global warming?
A) Synthetic gasoline made from coal
B) Electricity from a nuclear power plant
C) Electricity from a coal-burning plant
D) All of the above would contribute to global warming.
E) None of the above would contribute to global warming.