A subordinating conjunction usually introduces an adverb clause.
That he can't trust anyone and he never wants to go somewhere dangerous alone
1. The main idea would be "<span>Scientists have lots of evidence to explain why dragons don't exist."
Emphasized by the evidence and word choice related to scientific evidence
2. The main idea would be "</span><span>I have always wondered if dragons existed, and I hope they did."
Displayed through the author's nature of questioning and evaluating different kinds of evidence and ideas. </span>
