Answer:
1) the one thing I learned or notice from this Social studies article is that when a air pollution is that a components of greenhouse are gases the use as a lead that lead to change in climate or fossil fuels
2) This causing impact means when increased use of fertilizers that faster than geologic
From what I could find, Sirens are asking for help. The song they sing is a cry for help. They are described as acting/singing like a "damsels in distress".
The answer would be a because many of the gold diggers actually didn't find gold. hope this helped :3