1. I'd say phosphorus was the key to the modern match.
2. It's difficult to choose between choice 1 and choice 4, but it's certainly more common than not to find a main idea in the first sentence of a paragraph, so I'll have to go with it took humans a long time to develop the match.
5--all of the other sentences are details relating to this main point.
1. the second one 2.the second one 3. not sure but I think its the first one 4. the first one 5. not sure but I think its the second one
Answer:
A
Explanation:
Phillip was behaving the same way by moving henry back over to his bed several times
