While the main idea is usually in the first sentence, the next most common placement is in the last sentence of a paragraph. The author gives supporting information first and then makes the point in the last sentence. Here's a paragraph we can use as an example. Try to locate the topic and the main idea.
Answer:
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Unlike most animals, they're enjoyable. They don't do anything but sing til they die. They're calm, peaceful, and beautiful. Mockingbirds are nothing but amazing. It's a sin to kill a mockingbird just like it's a sin to kill a unicorn. To kill something so pure and harmless is horrible. That's why it's a sin to kill a mocking bird.
i hope this helps :^)
Valley of Ashes symbolizes the poorest, most desolate parts of New York's towns. It represents dreary isolation from wealth and deceitful behaviors from the citizens.
