Answer:
However many possible scenarios of anthropogenic extinction have been proposed; such as human global nuclear annihilation, biological warfare or the release of a pandemic-causing agent, overpopulation, ecological collapse, and climate change.
The auditory nerves play a very important function in our bodies,without the auditory nerves we couldn't be able to hear.
B. Considerate
Considerate, adj.
"Careful not to inconvenience or harm others."