Generally speaking, that is correct. A dystopia is the opposite of a utopia, and is a place which we define as unpleasant or bad. Therefore, what you might find in a dystopia is what you would consider as being unpleasant or bad. Hence, if you think polluted lakes and rivers are unpleasant, then they are likely to be part of a dystopia "for you". However, each person's dystopia may be different, as it depends on personal preference, or in this case, personal disgust.
The theme of "The Black Ball" that depends on having a Modernist narrator is that it is not good to be behind the black ball (eight ball) in pool, and in life, African Americans needed to play a game like pool, just to stay out of trouble. The ball is white represents who had a nice life and had the power because whites had all the power, yet with the changing times, the ball’s color might change too, just like the discrimination because Caucasians and African Americans.
The correct answer is A. This is the case of using comma before a coordinating conjunction <em>and</em> because it links two independent clauses. We can observe that there two parts of this full sentence and each part is independent from each other. Both of them have their own subject and verb. Therefore, we are using a comma before <em>and</em>.
having no limits or boundaries in time or space or extent or magnitude
Past progressive is the correct answer.