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If a county decides to use a decentralized system for administering general elections, which person has the most responsibility?

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Wave types that are important for seismic hazard assessment:Which of the following statements are correct?(A) P-waves dominate the wave-field at all distances;(B) Local surface waves and resonances dominate the wave-field at sediment site;(C) Surface waves dominate the wave-field at large distance above 60-80km;(D) S-waves dominate the wave-field at small distances below 30km;(E) Surface waves dominate the wave-field at small distance below 10km;

You analyze an earthquake in Southern Italy that occurred in the 15th century. For a large city L, there exist written contemporary reports describing moderate structural damage and one collapsed building. For one of the neighboring villages M, located about 10km away, it is reported, that the earthquake was felt by all persons, however without causing any damage. Which of the following statements are correct?(A) The macroseismic intensity in EMS for the village M is about intensity V;(B) The macroseismic intensity in EMS for the large city L is intensity IX;(C) This is a typical observation for a subduction event.(D) The earthquake was most probably a shallow earthquake;(E) The epicenter is probably close to the large village L;

Please indicate in the seismogram the arrival-time of P-, S-, and surface wavesWhat is the approximate distance of this event?(A) 1 km(B) 10km(C) 100km(D) 1000kmDescription de l'image :Arrivée onde P au bout de 7 [s]Arrivée onde S au bout de 22 [s]Arrivée ondes surface au bout de 25 [s](Ref sismographe Fribourg 1999/02/14, Magnitude 4.3)

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