Around how long did it take for Marco polo to travel to china​

17 years

Explanation:

Marco Polo's travels to Asia (1271–95), immortalized in his Travels of Marco Polo. Marco, his father, and his uncle set out from Venice in 1271 and reached China in 1275. The Polos spent a total of 17 years in China.

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.