Answer: Kievan Rus is also called as the land of Rus. It is located in Russia.
Explanation:
The internal cause of the down fall: The empire weaken by the collapse of the commercial trade with the Byzantine empire and this lead to major economic crises in 12th century.
The various rival regional powers were influencing the working of the state.
The external cause of the down fall: The Mongol invasion in 1240s caused the complete fall of the state.
<span>the age of science and scientific inquiry</span>
Explanation: During 1685 to 1815 a movement radically changed European politics, philosophy, science, and communication, which was referred as the enlightenment period. It was not based on religious practices and beliefs but reasoned the belief and so it was called the age of reason.
Hope this helped!
:)
Answer: C: It has varying degrees of thickness.
Explanation:
