Which Norwegian explorer led the first crossing of the Greenland ice cap in 1888?

What is the economic term for the amount of output per hour of work? Amoxicillin and ampicillin are types of what? In the 1990s, AMR and UAL were the parent companies of the top two U.S. companies in which industry? Amsterdam Island in the Indian Ocean is home to a rare type of which wandering seabird? Amy Feng, Wei Wang and Lily Yip made up the 1996 U.S. Olympic team in which sport? Amy Irving and Betty Buckley appeared in which 1976 Brian De Palma horror film about a high school prom? Amy Irving provided the singing voice of Jessica Rabbit in which 1988 film? Amy Van Dyken won four gold medals at the 1996 Olympics in which sport?