1. birch   cedro   arce   castaño   abedul   Hint Half-n-half Clue   2. maple   abedul   arce   castaño   haya   Half-n-half Clue   3. beech   abeto   arce   haya   olmo   Half-n-half Clue   4. cedar   álamo   abeto   pino   cedro   Half-n-half Clue   5. oak   abeto   pino   castaño   roble   Half-n-half Clue   6. fir   abeto   olmo   álamo   pino   Half-n-half Clue   7. chestnut   álamo   abedul   roble   castaño   Half-n-half Clue