How did Ibn Baṭṭūṭah’s travels build knowledge of geography

An atom of element a has 73 protons. what would the element's atomic number be?

Why did friedrich hayek call expansionary spending dangerous? o he felt it could lower the money supply and cause deflation. o he felt it could lead to inflation and poor decisions by consumers. o he felt it could lead to deflation and poor decisions by consumers. o he felt it could lower available credit and cause a drop in prices.

What was the atlanta race riot of 1906 ?