The leader of the Bolscheviks was Vladimir Lenin (1870-1924).
He founded the Bolscheviks (meaning "majority") together with<span> Alexander Bogdanov. (it split in 1903 from the Mansheviks).
The Bolscheviks later became the Communist Party of the Soviet Union
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He studied the fossils' age and how tall the mountains are. He also studied how old they are. I don't know about Coal Beds but he also used balloons to find out the continents were once a big supercontinent called Pangaea and they apparantly drifted apart
Northerners responded in many different ways to the Fugitive Slave Act, but the best option from the list would be "<span>A. Some northern states enacted legislation opposing it" was one of the major tensions leading up to the war. </span>
The Moche were located in peru