True or false: the “glasnost” and “perestroika” policies promoted and carried out by mikhail gorbachev contributed to eventual break-up of the soviet union.
a.) true
b.) false

What does it mean when world war one is referred to as a “total war”

Which of the following american companies had a monopoly in the late 1800s? a. deere and company b. sears, roebuck and company c. standard oil company d. general electric company

Which statements explain reasons why unconformities occur? check all that apply. rocks along a fault break and move. igneous rock forms at earth’s surface. rocks erode and sediment is deposited. no sediment is deposited over a long time. igneous rock forms between sedimentary layers.