I'm pretty sure it's railroads, because there's not that many highways in Siberia, the rivers would be frozen over, and there's not a ton of people in Siberia. I'm sorry if I'm wrong.
Answer:
Two things. First, it's spelled Uncle, not uncel. Second, Shouldn't that be something you can do on your own?
Explanation:
Pretty sure it's outer core, lower mantle because the inner core is solid iron
Explanation:
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