The answer to this question is Bias
When researchers are being biased in their analysis, all of their analysis become really unreliable because it does not fully reflect to the truth.
To make the result of the researchers fully reliable, researchers need to base their analysis solely to the data at hand
True, before the early 20th century, Russia was known as an agricultural society.
Answer: Japan
Explanation: During WWII, Japan was in the war and used Korea as a place for resources instead of their homeland because if something were to happen in japan the resources were going to be destroyed
The 19th century figure that is known for opening Japan to US trade is :
Mathew Perry
he was a commodore of United States navy that opened japan US Trade
hope this helps