Car emissions, factories, volcanoes, wild fires all contribute to global warming since they emit carbon dioxide to the ozone which then weakens the ozone layer which protects us from the harmful ultraviolet rays of the sun.
1.loc
2.sign
3.nat
4.cogn
5.ped
I'm not sure about the bonus questions
that you love them----------------
It's to develop the theme "death conquers all" hope this helps