Question: Americans with Sub-Saharan African ancestry for historical reasons: slavery, partus sequitur ventrem, one-eighth law, the one-drop rule of 20th-century legislation, have frequently been classified as black (historically) or African American, even if they have significant European American or Native American ancestry. As slavery became a racial caste, those who were enslaved and others of any African ancestry were classified by what is termed "hypodescent" according to the lower status ethnic group. Many of majority European ancestry and appearance "married white" and assimilated into white society for its social and economic advantages, such as generations of families identified as Melungeons, now generally classified as white but demonstrated genetically to be of European and sub-Saharan African ancestry.
Is there an answer to this question: What were people of European ancestry classified by?

Answer: unanswerable


Question: In markets where a digital transmitter was installed, existing coverage areas were not necessarily maintained. For instance, the CBC implemented a digital transmitter covering Fredericton, New Brunswick in the place of the existing transmitter covering Saint John, New Brunswick and Fredericton, and decided to maintain analogue service to Saint John. According to CBC's application for this transmitter to the CRTC, the population served by the digital transmitter would be 113,930 people versus 303,465 served by the existing analogue transmitter. In Victoria, the replacement of the Vancouver analogue transmitters with digital ones only allowed only some northeastern parts of the metropolitan area (total population 330,000) to receive either CBC or Radio-Canada.
Is there an answer to this question: In what area of Victora was CBC and Radio-Canada available?

Answer: only some northeastern parts


Question: Season nine premiered on January 12, 2010. The upheaval at the judging panel continued. Ellen DeGeneres joined as a judge to replace Paula Abdul at the start of Hollywood Week.
Is there an answer to this question: Who filled the judges spot vacated by Paula Abdul on season nine of American Idol?

Answer: Ellen DeGeneres


Question: On the recovery side of the flight deck, the adaptation to the aircraft loadout is mirrored. Non-VTOL or conventional aircraft cannot decelerate on their own, and almost all carriers using them must have arrested-recovery systems (-BAR, e.g. CATOBAR or STOBAR) to recover their aircraft. Aircraft that are landing extend a tailhook that catches on arrestor wires stretched across the deck to bring themselves to a stop in a short distance. Post-WWII Royal Navy research on safer CATOBAR recovery eventually led to universal adoption of a landing area angled off axis to allow aircraft who missed the arresting wires to "bolt" and safely return to flight for another landing attempt rather than crashing into aircraft on the forward deck.
Is there an answer to this question: What is the purpose of an arrested-recovery system?

Answer:
to recover their aircraft