The answer is B I know this because I took the test
The one that presents a main idea is number (3) "Fire, in fact, has been a significant factor in human development and progress in many ways".
<u>The main idea of a paragraph states the primary point that the author wants to express and transmit to the reader</u>. Generally, the main idea is announced in a single sentence and this sentence is usually located at the beginning of a paragraph. In the case of the paragraph provided,<u> sentence 3) is the one that contains the main idea because it encompasses all the supporting details that are included in the rest of the sentences</u>. In other words, sentences 1), 2), 4), 5), 6) and 7) provide supporting information for the main point stated in sentence 3).
The answer is True, taking notes helps you look back on things but personally taking notes and listening is hard lol
You cannot really tell of he is or not, but if you look close at how they act, the tone of their voice, or even how they're dressed, you might be able to tell.
P.S. please mark me as brainliest ;)