Answer: Positive Effect (Improvement and Development)
Explanation:
The world had passed through two industrial revolutions. The first revolution being in the 1700s. And the second revolution in the 1860s.
Man used roads as the basic way to transport his/her goods from one place to another. Actually roads were in very bad state before the first revolution, and it was not efficient for people to transport goods.
Roads, railways and canals were three major components of transportation improved during the first industrial revolution.
The automobile and airplane was among two most incredible forms of transportations that were been invented during the second industrial revolution in the 1860s.
an elite athlete acclimate to higher altitude they acquire more red blood cells which allows their blood to carry more oxygen when they compete at lower altitudes they get a natural boost to the muscles when additional oxygen is available
