How do I ask the question "Where is it made?" or "Where is it made in"?

Sometimes I feel confused about if I should add a preposition, like "come back to Seattle" or "come back Seattle".

If I want to ask a question about where something is made, how to say the question "Where is it made?" or "Where is it made in"?

Solution 1:

The correct way to put this is "Where is it made?"

The rule about adding prepositions at the end of a sentence is: only do it if the sentence doesn't make any sense without it. "Where is it made?" makes sense without a preposition, so don't add one.

This resource cleared up this issue for me: http://grammar.quickanddirtytips.com/ending-prepositions.aspx