Problem: What's the answer to that question: what were the causes of the russian revolution in 1917?

A: World War I


Problem: What's the answer to that question: where does the zambezi river end?

A: Indian Ocean


Problem: What's the answer to that question: what did gerald ford do?

A: President of the United States


Problem: What's the answer to that question: what did isaac newton discovered as a mathematician?

A:
isaac newton co-developed calculus with gottfried wilhelm leibniz