A self-amplifying reaction and a nuclear explosion in a nuclear power plant are prevented in large part by
A) the regular addition of uranium-239 to the fuel.
B) control rods that absorb extra neutrons.
C) the production of plutonium-239.
D) fuel rods that absorb tremendous amounts of heat.
Question 2
In the summer, the heater on an automobile still works well, even though you do not need it. This is because the heater in a car draws on surplus heat generated when gas is used to power the engine.
This extra heat, wasted in the summer, is produced as a result of the A) Law of the Conservation of Momentum.
B) First Law of Thermodynamics.
C) Law of Inertia.
D) Second Law of Thermodynamics.