They're used by humans for fossil fuel and in entertainment. They were not created by the human race, they were created through thousands of being underground and soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
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How did the British respond to the Canadians desire for self-rule? Britain finally agreed to a confederation of Britain''s North American colonies and Parliament passed a law that created the Dominion of Canada. ... Britain agreed to Australian demands for self-rule.
They were a strength to the Union. They carried soldiers and supplies to the battlefront much quicker, from a few months' march to a week. Having the supplies quicker to the battleground gave the Union the advantage over the Confederates, since the Union could recover much faster from any loss.
