Q: Does "On 19 February, Darwin suffered a devastating air raid, the first time the Australian mainland had been attacked." provide a valid answer to "About how many Australians were taken prisoner after the fall of Singapore and British Malaya?"?
A: no

Q: Does "It alters sunlight exposure; whether this is beneficial depends on one's location and daily schedule, as sunlight triggers vitamin D synthesis in the skin, but overexposure can lead to skin cancer." provide a valid answer to "What vitamin does sunlight help the human body absorb?"?
A: yes

Q: Does "The human body contains copper at a level of about 1.4 to 2.1 mg per kg of body mass." provide a valid answer to "What is the level of copper in the human body?"?
A: yes

Q: Does "On July 1, 1988, the fourth and last day of a bruising 19th Party Conference, Gorbachev won the backing of the tired delegates for his last-minute proposal to create a new supreme legislative body called the Congress of People's Deputies." provide a valid answer to "What ws the final day of the 19th Party Conference?"?
A:
yes