A) It occurs on a deforested site
B) It follows primary succession
C) It is similar to primary succession except that it has a relatively fast pace
D) It begins on a bare rock
Correct Answer: A
Solution :
Secondary succession or subsere is ecological succession that takes place in a recently denuded area which still contains a lot of organic debris, remains and propagates of previously living organisms. It is more common and caused by baring of an area due to forest fires, deforestation, excessive overgrazing, landslides, earthquakes, repeated floods, etc. Only 50 to 100 years are required for establishment of a grassland over a recently denuded- area. Formation of forest requires 100 to 200 years.
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