Answer:
I would say the first one
Explanation:
I think it fits best
For the answer to the question above, before the competition makes sure she knows her content and topic if she finds it hard tell her to write small notes on it to expand and talk about in more detail or research it the night before the debate.
The author is saying that because of humans and the ways they are impacting earth is causing irreparable changes like causing animals to go extinct, etc.
