An old-growth forest is a(n) ____.
A. commercial forest older than 30 years
B. forest undisturbed for at least 50 years
C. second-growth forest undisturbed for at least 100 years
D. replanted forest that has had little disturbance for 100 years
E. uncut or regenerated primary forest undisturbed for at least 200 hundred years
Answer: E
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