How does a writer develop the main idea of a piece of writing?

The main idea of a piece of writing:

Writing portrays an individual, spot, thing, or thought to utilize clear tangible subtleties. The essayist's expectation is the significance or translation of the entry that the writer had as a top priority when the person was making it. The subject of an article is the subject, or what the paper is about. The thought is the thing that the essayist says about the point.

The thoughts incorporate the primary thought, which is then communicated as a theory articulation. The primary thought isn't questionable like the postulation articulation ought to be; it's essentially a thought. It additionally incorporates the importance the essayist is attempting to pass on.

While the primary thought is as a rule in the principal sentence, the following most normal situation is in the last sentence of the passage. The creator gives supporting data first and afterward, makes the point in the last sentence. Here's a passage we can use for instance. Attempt to find the theme and the primary thought.

i guess the cause and effect would show how being around the smoke(the cause) can have negative effects on the body.

explanation:

we would need to be able to read the passage in question to determine which factor allowed david believe he could defeat goliath. post the passage, and i'd love to out.