What is the difference between the topic and the main idea of an informational text?

The topic is the subject of a piece, while the main idea is a statement about the topic or a specific way of thinking about the topic.

racism is the belief in the superiority of one race over another, which often results in discrimination and prejudice towards people based on their race or ethnicity. the use of the term "racism" does not easily fall under a single definition.

explanation:

the noun in this is person