Using 1000 plants, each for an individual barrel. The plant that was poisoned will die within thirty days, that way the people will not die. Personally I don't see what's so bad about using 1000 humans as text subjected though ;)
Answer:
It is asking you to write what you learned from a certain experiance, like "This experiance has taught me that lying leads to consequences." Or something like that. Also In your first paragraph, it says, "'because when I was younger" You could combine it with "I believe that lying is bad" Instead you could say, " I believe that lying is bad, for example when I was younger..."
Autobiography is the right answer