During the 10th century the kingdom of kiev (also known as kievan rus') controlled the trade routes for furs, wax, and slaves between scandinavia and which empire? a) british b) byzantine c) persian d) roman

The answer is B Byzantine

I know this becasue i did a little quiz and that is the correct answer

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.