What is the question? You did not write a question
Opaque means it's not see through, not clear, or transparent
Answer:
Family secrets shouldn't be told outside of the family because whoever told ypu that secret trusted you alot to keep the secret and just as you gained there trust you can lose it.
His toughness of character helps him stay alive in the jungle.
4) Time-consuming lab work
3) Exhaustive note taking
It's asking you proof that Ramirez is a demanding teacher not about the course itself so it is not 1, 2, 4 or 6. It is 4 and 3 because it shows Ramirez was demanding by enforcing a heavy load of work
