Problem: PAL, SECAM and NTSC frame rates technically apply only to analogue standard definition television, not to digital or high definition broadcasts. However, with the roll out of digital broadcasting, and later HDTV broadcasting, countries retained their heritage systems. HDTV in former PAL and SECAM countries operates at a frame rate of 25/50 Hz, while HDTV in former NTSC countries operates at 30/60 Hz.
PAL, SECAM, and NTSC frame rates do apply to what broadcasts?
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Answer: unanswerable

Problem: Many Latin American migrants have been mestizo, Amerindian, or other mixed race. Multiracial Latinos have limited media appearance; critics have accused the U.S. Hispanic media of overlooking the brown-skinned indigenous and multiracial Hispanic and black Hispanic populations by over-representation of blond and blue/green-eyed white Hispanic and Latino Americans (who resemble Scandinavians and other Northern Europeans rather than they look like white Hispanic and Latino Americans mostly of typical Southern European features), and also light-skinned mulatto and mestizo Hispanic and Latino Americans (often deemed as white persons in U.S. Hispanic and Latino populations if achieving the middle class or higher social status), especially some of the actors on the telenovelas.
What are many Latin American migrants?
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Answer: mestizo, Amerindian, or other mixed race

Problem: Following the death of Grand Prince Igor in 945, his wife Olga ruled as regent in Kiev until their son Sviatoslav reached maturity (ca. 963). His decade-long reign over Rus' was marked by rapid expansion through the conquest of the Khazars of the Pontic steppe and the invasion of the Balkans. By the end of his short life, Sviatoslav carved out for himself the largest state in Europe, eventually moving his capital from Kiev to Pereyaslavets on the Danube in 969. In contrast with his mother's conversion to Christianity, Sviatoslav, like his druzhina, remained a staunch pagan. Due to his abrupt death in an ambush in 972, Sviatoslav's conquests, for the most part, were not consolidated into a functioning empire, while his failure to establish a stable succession led to a fratricidal feud among his sons, which resulted in two of his three sons being killed.
What year was Sviatoslav's empire consolidated?
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Answer:
unanswerable