religious differences and the promise of wealth
First answer is B because it moves because of heat, and you could probably assume.
2nd is C, obvious
3rd St Helens, the rest arent on the map
4th My best guess is changing
Answer:
Germany resumed unrestricted submarine warfare in 1917, because it wanted to starve Britain into making peace.
Modern era was is the term that historians use to describe the historical period between the beginning of the 16th century and the 21st century.