The central idea of the poem is how her mother died and took her courage with her, something her child does not have. The child states how since she is dead she took it with her to her grave which is why they said she does not need it anymore. The mother left behind a golden brooch that she wore since it would remind her child of her even when she is gone. But the child wants her courage, not her brooch.
I think the answer may be water pollution.
water pollution > Water pollution<span> is the contamination of </span>water<span> bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). This form of environmental degradation occurs when </span>pollutants<span> are directly or indirectly discharged into </span>water<span> bodies without adequate treatment to remove harmful compounds.
source: Wikipedia </span>
I agree that mass media helps to shape people's ideas. When people see what is happening in the world, they want to be a part of the talk and they start spreading their opinions. Thts all I got I'm sorry