Final answer:
The introduction of an effective essay should have a main idea statement, a summary of the topic, and evidence to support the details.
Step-by-step explanation:
The introduction of an effective essay should have a main idea statement which introduces the central theme or focus of the essay. It should provide a clear and concise overview of what the essay will discuss. Additionally, the introduction may include a summary of the topic to give the reader an understanding of the subject matter. Lastly, the introduction may also include evidence to support the details that will be discussed in the essay.
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