The most important development in providing secure retirement for americans was the
a. great depression.
b. internal revenue code.
c. social security act.
d. industrial revolution.

Hurry ! between 1900 and 2010, how did the world’s population change? a. it increased from about 1.5 billion to almost 7 billion. b. it decreased from about 7 billion to about 1 billion. c. it increased from about 5 billion to about 7 billion. d. it decreased from about 7 billion to about 1.5 billion.

How were the economies of the northern and southern states different? how ere they the same? what factors led them to develop differently?

What is the first half of church mass called?