The awnser is b have a good day!
Answer:
Grand Canal was expanded and improved, overland trade routes, some of the greatest writers, porcelain, wood block printing, gunpowder, improved magnetic compass, and paper money are all advancements made during which dynasty.
Google ; )
Answer:
Seat belts
air bags
child safety seats
Motorcycle helmets etc
Explanation:
we know according to the ( NHTSA ) National Highway Traffic Safety Administration
the combination of Seat belts and air bags and child safety seats and Motorcycle helmets
these are some factor that if we use them properly
so according to NHTSA study 2017 seat belt alone reduce 45 % injury who are occupy front seat in car
He was an African American Civil rights activist, a historian, and teacher whose main focus was racial discrimination and inequalities within the US. (he also attempted to issue world peace throughout the first half of the 20th century)
