Relacionar Columnas Continents of America Versión en línea South America, North America and Central America por Carlos Gabriel Leon Vasquez 1 Where is Central America ? 2 Which question words can be used as conjunctions? 3 How do prefixes help us? 4 Where is South America? 5 Where is Ecuador 6 Where is Canada 7 Which mixture is homogeneous? 8 What is a heterogeneous mixture? 9 Where is North America? 10 What is the biography? 11 Where is Costa Rica A frequently asked question about conjunctions is whether and or but can be used at the beginning of a sentence. A biography is a description of a real person's life, including factual details as well as stories from the person's life A homogeneous mixture is a mixture throughout the solution in which the composition is uniform. The saltwater mentioned above is homogeneous due to the even distribution of the dissolved salt throughout the entire sample of saltwater. A heterogeneous mixture is a mixture that is non-uniform and contains smaller component parts. A prefix is a group of letters (or an affix) that's added to the beginning of a word. Prefixes modify the meaning of a word. They can make a word negative, show repetition, or indicate opinion. When you add a prefix to a word, you shouldn't change the spelling of the original word or the prefix.