The major ethnic group in Western Russia is Slavic.
Unhygienic conditions, dehydration, dysentery
The main characteristic of the absolute monarchies was the existence of a king who had absolute political control. This meant that there were no laws, division of powers, or any other form of control over the decisions or actions of the monarch.
Hey there! Historical thinking involves the ability to identify, analyze, and evaluate the relationships among multiple historical causes and effects, distinguishing between those that are long-term and proximate, and among coincidence, causation, and correlation. If there is anything else I can help with, I'll be glad to help! :)