What was the main reason for russian expansionism in the 1800s

The steppe and forest-steppe of Ukraine and southern Russia is good agricultural land, but it was traditionally held by pastoral nomads. Any state that could drive off the nomads and fill the land with tax-paying peasants would expand its power enormously. During the period 1500–1800, this region was taken under Russian control.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)

a. favoring native born americans over immigrants.