Which innovation extended the number of hours in a day that americans
could work and play?
a. bessemer process
c. refrigeration
b. telegraph technology
d. electricity

Describe the development of french settlements and beginning of conflict with the native americans near the st. lawrence river.

An important accomplishment of the chinese during the han dynasty was the a. invention of paper. b. production of bronze tools. c. construction of the great wall. d. building of royal tombs.

Need it now explain gorbachev’s policy of glasnost. how did this policy change the soviet union?