Answer:
The most important reason for the formation of the Peloponnesian League was? The allies of Athens in the Delian League began to resent Athens mainly because of its? A nation that joins another nation in some common effort, such as winning a war
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It is improving water to be more clean, and by making it safer and better to drink and bathe in. It is helping with food growth. If the water is clean, and filtered there is more of a chance for less crop die out.
I think it’s the last one
I think that the answer is A but not for sure.