Daily Quiz | Aviation industry: Crashes, heroes and lessons learnt

In what is being called China’s worst air disaster in more than a decade, a China Eastern Airlines plane crashed on March 21 in a remote, mountainous region of the country as it flew from Kunming to Guangzhou. While this is a tragic incident, data show that the aviation industry has become much safer over time and has learnt a lot of lessons from previous accidents. Here is a quiz on crashes, lessons learnt, heroes, and the industry.