Answer:
Pollution and limited resources
Explanation:
Pls crown brainliest!
Italy is the country that changed sides about a year after World War I began and joined new sides. Italy was actually part of an alliance that included the countries of Austria-Hungary and Germany. It was actually part of the Triple Alliance before World War I. I hope the answer helps you.
It’s B, because if you think about it it’s the only one that make sense
One reason that more people didn’t foresee the economic collapse of the 1930s is that it came about so suddenly, with practically no warning, since the US economy throughout the 20s was thriving and "booming"--leading people to think that there were no issues whatsoever.
Trade......................