Because of the foreign policy and the spread of slavery
I think it is d to hope this helps
Answer:
It just means that the democracy ceased to exist.
Explanation:
The major dictatorships at the time, like Germany, invaded a lot of nations, and when that nation fell to their rule, their democracy was 'dismantled', or ending it entirely.
The use of natural gas was limited during the 19th century because technology did not exist to extract large amounts of gas and pipe it safely over long distances.