Answer the following statements true (T) or false (F)
1. Some ecologists believe replacing old-growth forests with second-growth forests has caused an overall reduction in biodiversity.
2. When trees are cut down faster than they are replaced, forests become a nonrenewable resource.
3. The introduction of nonnative species into lakes disrupts the balance of the ecosystem but usually does not affect native species.
4. The National Wild and Scenic Rivers Act protects most of the waterways in the United States from development for public and commercial recreation use.
5. Dependence on oil, coal, and natural gas is the primary cause of air pollution, water pollution, and global warming.
1. TRUE
2. TRUE
3. FALSE
4. FALSE
5. TRUE
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