Which is a worldwide trend in the standard of living since the mid-twentieth century? The life expectancy in developed countries fell from 74 to 66 years.

The literacy rate in China increased from 5 percent to 100 percent.

The literacy rate in sub-Saharan Africa decreased from 50 percent to 12 percent.

The life expectancy in developing countries rose from 40 to 61 years.

What development led the soviet union to establish the warsaw pact? the soviets gained control over satellite countries. west germany joined nato. the allied powers grew weaker. the berlin wall was erected between east and west germ

He scientific revolution encouraged scientists and philosophers to

Why were entrepreneurs able to earn such good profits in businesses related to the california gold rush? a.) it was very difficult for entrepreneurs to earn any profit in businesses related to the california gold rush. most went broke and headed back east. b.) supplies were scarce and demand was great. entrepreneurs provided the things the miners needed. that allowed the entrepreneurs to earn good profits. c.) when the state of california noticed the high profits the entrepreneurs were making, it took over their private businesses. the state earned all of the profits after that. d.) a small group formed. it would not allow other entrepreneurs to open businesses. bykeeping the supply of goods low, the group was able to earn very high profits.