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Which of the following represent human systems? 1. Cascade Tunnel 2. coal mines 3. Rocky Mountains 4. the Erie Canal 5. Lake Superior
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1 vote
Which of the following represent human systems?

1. Cascade Tunnel
2. coal mines
3. Rocky Mountains
4. the Erie Canal
5. Lake Superior

User MKroeders
by
8.8k points

1 Answer

6 votes
The answers are number 1,2 and 4
User Detaylor
by
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