Answer;
The Huronian Supergroup <span>is </span>particularly<span> exciting and </span>interesting<span> because, by chance, these </span>rocks<span> were laid down at a period when the atmosphere underwent a transition from containing no free oxygen to containing at least some free oxygen.”
</span> Explanation;
The Huronian
Supergroup, a massive
formation of rock laid down
gradually between about
2.5 billion and 2.2 billion
years ago, precisely the
period when oxygen
began to accumulate in the
atmosphere. The Huronian Supergroup is 10 or 11
kilometers (six or seven
miles) thick and extends well below ground
The theme that is addressed in both "We wear the mask" and "A man said to the universe" is how humans can be helpless in the face of external forces.
You could pose questions ...
"What does it mean to be an adult? Is it based on age? Is it based on employment? Is it a gut feeling? More important perhaps than these questions, is how the sense of being an adult helps one assume a larger role in our society."
I'm not sure exactly how you plan to go about your paper or what ideas you are exploring within your writing, so this might not work entirely. Nevertheless, I think it could be a good place for you to start.