I believe that there was hunger due to shortage of supplies. :)
We need more info there is no following in you question
Answer:
ww1 started in the middle east, Serbia wanted a part of the austrian-hungarian empire to be apart of their country. Next, the terrorist the black hand assassinated the archduke, thus resulting in austrian-hungarian coming in on serbia. After that, russia wanted to be a protector of serbia due to their religious similarities. Now russia was in germany entered because of the alliance agreements. next other countries joined. germany shot the first shot and was militarizing thus they wanted war.
Explanation:
The Neolithic Era or the Stone Age
contributed greatly in the creation of civilizations for this was the period
where development in terms of agricultural practice, encouragement of
developing societies and cities took place. This was the time when men
started to domesticate plants and animals. This was somehow the transition from
the lifestyle of hunting and gathering to one of agriculture and settlement
which made way to the possibility of an increasing larger population during
that time. By doing so, they were able to produce more food which led to the
mastery of being artisans, merchants, government officials and other
professions needed to have civilization. It is said that for a civilization to
be considered legit, it must have cities, government, religion, social
structure, writing and art. And all these were evident and started during this
Period.