WW1 made Russia to leave during the war, so it was one of the factors that made them have a revolution
Answer: an economic phenomenon where two parties each hold an item the other wants, so they exchange these items directly without any monetary medium!!
hope this helped :)
Answer:
The second. Its what I read in a book recently.
Explanation:
To navigate people and find peope
<span>The use of metal tools marked the end of the neolithic age and the beginning</span><span> of the metal age. Many tools were improved and various metals were used. </span>
