Exchange rates do not affect the balance of trade.
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? How can they not? If our currency becomes 10x stronger, all foriegn goods are cheap. If our currency becomes 10x weaker, our goods will be a bargain internationally.
There are plenty of ways anyone can look up trade balance trends along with exchange rates and to see how there's no connection. There are also lots of links to explanations on why things are the way they are. If you're interested I can help you with finding both.
You might want to fix that sticky question mark key first though.