Does "Imbalances between North and South were expressed in Nigeria's political life as well." contain the correct answer to "When did northern Nigeria ban slavery?"

A: no

Does "For the years 2009 to 2011, Beyonce earned an average of $70 million per year, and earned $40 million in 2012." contain the correct answer to "When did she and Jay Z become the highest paid black celebrity couple?"

A: yes

Does "These films can range from a few micrometers in thickness to up to half a meter in depth, and may contain multiple species of bacteria, protists and archaea." contain the correct answer to "What is the purpose of networks of channels in microcolonies?"

A:
no