8. What was Carnegie's great breakthrough when it came to the manufacture of steel? a. He used the Bessemer process to make it fast and cheap.
b. He discovered how to use metals native to America to make it.
c. He realized that efficient production required electricity.
d. He installed kerosene lighting so his factories could operate 24/7.

answer; /// i do believe the correct answer is ( a

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.

c

explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long