I believe that it would be steam.
Too much ---------- flooding and muddy and messy land
too little-------------- drout and plants die
The answer is B) The Aryans
William Tweed was the leader of Tammany hall who grew rich through corruption but did little to solve any of New York's problems.
One way in which old imperialism and new imperialism were similar is that "<span>Colonies existed for the benefit of a mother country", since the mother country wouldn't have exerted effort to claim territory had it not been favorable. </span>