The need for public transportation arose in the age of rapid industralization in Europe and the USA. Public transport vehicles and a city system were needed for the masses of workers that had to move and work in shifts in the urban factories .
The answer would be unruffled, which means <span>not disordered or disarranged, (</span>something as not upset during a loud discussion). Hope this helps!
The Nobel Prize in Physiology or Medicine in 1962 was awarded to James Watson, Francis Crick and Maurice Wilkins for their discovery of the molecular structure of DNA, which helped so
