question: What is the answer: H2CO3 is the molecular formula for which acid ?
answer: carbonic

question: What is the answer: The River Volga runs through which capital city?
answer: moscow

question: What is the answer: What is the first bridge that the boats pass under in the Oxford - Cambridge boat race?
answer: hammersmith

question: What is the answer: The Indian astronomer Brahmagupta who lived in the 7th century is credited with introducing what fundamental mathematical concept?
answer:
number zero