Match the causes with their effects. The mongols were easily able to defeat the Russians. Under the rule of the mongols, Russia fell behind in progress when compared with Western Europe. Bait waited two years to attack south Russia.

81 is a composite number.

tension is the type of stress that results when two tectonic plates diverge .

explanation:

they were destroyed coming out of the civil war but after he war they were booming. if you need an in-depth answer follow up with me  

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