Why did Joseph Stalin launch the Great Purge shortly after becoming the leader of the Soviet Union?
O A. To create mass starvation in regions that opposed his rule
O B. To imprison or kill any person who might be disloyal to him
O C. To reverse the economically disastrous policies of Vladimir Lenin
D. To eliminate all political parties that challenged communism

__1__ is a climate cycle where the temperature of the __2__ ocean changes because of movements of air and ocean currents. during this period, the trade winds in the south __3__ , causing the __4__ water to move from the __5__ region to the __6__ region. 1) el nino or the monsoon 2) atlantic, indian, or pacific 3) reverse, strengthen, or weaken 4) cold or warm 5) eastern or western 6) eastern or western

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Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.