For their way of living before, the early humans cannot dwell in permanent homes. Thus, the answer to this question is letter C. This is because it was essential for them to move from one place to another because they were just dependent on the natural abundance of the source of food in a certain area.
The league of nation was set up in the Treaty of Versailles. The aim, strengths and weakness of this make the League of Nation a memorable one. This aimed to strengthen countries by stopping war. For them to stop a war, the countries must change and improve their conditions and educating them to all diseases.
Log/ Coal fire stove
Good day
The answer would be 16 years