Does the sentence "The heightened usage of ecstasy most likely ties in at least to some degree with the rising popularity of rave culture." provide a valid answer to the question "The heightened usage of what drug is most likely due at least in some part to the rising popularity of rave culture?"

A: yes

Does the sentence "This dates from the mid-19th century when the southwestern area of Westchester County west of the Bronx River, was incorporated into New York City and known as the Northside." provide a valid answer to the question "When was the Bronx added to NYC?"

A: yes

Does the sentence "The word phonology comes from the Greek , phone, "voice, sound," and the suffix -logy (which is from Greek , logos, "word, speech, subject of discussion")." provide a valid answer to the question "What language does phonology as a word come from?"

A: yes

Does the sentence "A bank of express elevators stop only on the sky lobby levels (36 and 60, upper-deck car), where tenants can transfer to "local" elevators." provide a valid answer to the question "During the low volume hours, what can the upper deck function as?"

A:
no