How to Use "obscure" with Example Sentences

1. What advantage melanism brings in these circumstances is obscure .
2. Scandinavians are also lumbered with obscure and difficult languages .
3. When central bankers talk about setting interest rates they are famously obscure .
4. How this state of affairs arose is obscure .
5. All genres and styles of music are covered here , ranging from the most commercially popular to the most obscure .