Problem: Does "Biological magnification is the process whereby these chlorinated hydrocarbons (pesticides) are more concentrated at each level of the food chain." answer the question "Why are hydrocarbon pesticides not excreted?"

A: no

Problem: Does "On June 22, 1990, Volodymyr Ivashko withdrew his candidacy for leader of the Communist Party of Ukraine in view of his new position in parliament." answer the question "Who was elected to be the new deputy general secretary of the Communist Part of the Soviet Union in July?"

A: yes

Problem: Does "By 1874, almost 500,000 passengers a year were coming to Atlantic City by rail." answer the question "By 1874, how many passengers were coming to Atlantic City by rail each year?"

A:
yes