Pl asap

read the following passage and answer the question.

“it [a toy helicopter] was a light frame of cork and bamboo, covered with paper, which formed two screws, driven in opposite directions by rubber bands under torsion.”

what does the word torsion refer to in the previous passage?

precise tools
the speed of flight
slight pressure
the state of being twisted

In the supreme court’s decision in korematsu v. united states, the court said that korematsu

Which part of the map is the subregion europe

What was one important characteristic of the russian military during world war i? a. it had more advanced military technology than its western european allies. b. it was an all-volunteer military that enjoyed high morale throughout the war. c. it defended russian territory but refused to attack german positions d. it was unable to provide its forces with adequate weapons and supplies.