fortune hunters encounter many difficulties when exploring a shipreck.
The topic is "exploring a shipwreck" and the controlling idea is "many difficulties."
Explanation:
Essentially, it conveys the main idea of a paragraph. When used throughout an essay, topic sentences make up its backbone, giving your arguments a clear support system. They help guide you as the writer, keeping your arguments on point, and they also help guide the reader.
You could always say 1,236 people. Or you could use its multiple, 2472, and divide it by two, so written it is; The population of foxville is about 2472/2 people.
