The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.
According to Wikipedia.com
Answer:
C
Explanation:
No consumers would find this toll worth the time saved in traffic.
Answer: it result in high dependency ratio.
Explanation:
Ageing population is a kind of population with a high number of old people than young people in the country. it can be a problem because it can lead to a high dependency ratio in which the number of the working population will be lower than the number of people who depend on the working population. when a country has a lesser number of people that are working it has a greater economic consequences for such a country such as decrease in production, reduction in the number of tax payers.
