Conservation law: Quiz

Question 1: Conservation of lepton number (In the ________)
PhotonStandard ModelQuarkParticle physics

Question 2: ________ (applies for low speeds)
Special relativityConservation of energyMass–energy equivalenceConservation of mass

Question 3: In ________, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves.
PhysicsUniverseQuantum mechanicsParticle physics

Question 4: Conservation of flavor (violated by the ________)
QuarkWeak interactionPhotonStandard Model

Source: The Full Wiki (http://quiz.thefullwiki.org/Conservation_law)