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:
relating to or denoting the generation of electricity using flowing water (typically from a reservoir held behind a dam or other barrier) to drive a turbine that powers a generator.
Explanation:
so D water power
Many of it is ending up in landfills and were not recycling enough of it.
Source message would be the answer you would be looking for
To combine the ideas to make everyone's dreams come true lol hopefully this helped