Event: Quiz

Question 1: ________, a sharp decrease in the number of species in a short period of time
Geologic time scaleCretaceous–Tertiary extinction eventPermian–Triassic extinction eventExtinction event

Question 2: Event, ________, experiments which produce high energy (Electron volt|MeV, GeV, and TeV) subatomic particle collisions
Particle acceleratorIonizing radiationX-rayNuclear fusion

Question 3: ________, an equestrian event comprising dressage, cross-country and show-jumping
Show jumpingEquestrian at the Summer OlympicsEquestrianismEventing

Question 4: ________, in project management
Event chain methodologyWork breakdown structureCritical path methodCritical Chain Project Management

Question 5: A ________, a performance or situation meant to be considered as art
KrautrockHappeningProgressive rockDrop City

Question 6: ________, a boundary in spacetime, typically surrounding a black hole, beyond which events cannot effect an exterior observer
Event horizonGeneral relativityBlack holeSchwarzschild metric

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