How do the physical feature of a place affect the economic activity of region

The physical features determine weather or not you can trade with a certain country

Explanation:

If a country is surrounded by water, then it makes it easy to trade with other countries, positively impacting the economy, but if it is surrounded by mountains, then it is a lot harder to trade with.  

answer; ///i believe its (b); ///the president will sign it or veto the check first good luck