The answer to this is B. It lies west of Mississippi River and East of Rocky Mountains in the U.S and Canada.
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Cap and trade reduces emissions, such as those from power plants, by setting a limit on pollution and creating a market. ... It's a system designed to reduce pollution in our atmosphere. The cap on greenhouse gas emissions that drive global warming is a firm limit on pollution. The cap gets stricter over time.
Digging and chopping similar to the pickaxe.
