The answer is Answer 2. The water molecule is usually changing from liquid to gas.
"The cause of" would be the answer
This is a bit tricky, but in general, it is climate change that is the source of the greatest disagreement among American politicians, because some people still think it doesn't exist.
Explanation:
The term "Postmodern" begins to make sense if you understand what "Modernism" refers to. In this case, "Modernism" usually refers to Neo-Classical, Enlightenment assumptions concerning the role reason, or rationality, or scientific reasoning, play in guiding our understanding of the human condition and, in extreme cases of Postmodern theory, nature itself. Postmodernism basically challenges those basic assumptions.
I think both Imperial China and Rome were both able to create a strict government. They were able to create a social stratification that allows people to function according to their designated roles, They were able to enforce a strong military which leads to successful conquest of neighboring states.