Following World War I, many democratic governments were facing extreme difficulties getting coping with the devastation that was left following World War I. For this reason the correct answer to your question among those would be:
<span>The governments were unable to solve serious economic problems in these nation.</span>
Answer:
Amoeba
Explanation:
They are able to survive because they carry out all life functions on their own.
Here is a few I found.
Mining
Hydropower
Petroleum
A ex post facto because you arent allowed to plant evidence to pead up a trial but people do it anyway