TEST 69Cambridge IELTS 18 · Questions 21–24The Laki EruptionChoose the correct letter, A, B or C.21Why do the students think the Laki eruption of 1783 is so important?AIt was the most severe eruption in modern times.BIt led to the formal study of volcanoes.CIt had a profound effect on society.22What surprised Adam about observations made at the time?Athe number of places producing themBthe contradictions in themCthe lack of scientific data to support them23According to Michelle, what did the contemporary sources say about the Laki haze?APeople thought it was similar to ordinary fog.BIt was associated with health issues.CIt completely blocked out the sun for weeks.24Adam corrects Michelle when she claims that Benjamin FranklinAcame to the wrong conclusion about the cause of the haze.Bwas the first to identify the reason for the haze.Csupported the opinions of other observers about the haze.