Causes of plant succession are:
Correct answer: B. Both (a) & (b)
- A. Environmental changes produced as a result of reaction to the community become favorable for new species of plants
- B. Both (a) & (b)
- C. Physiographic factors produce change in the habitat like flooding of plains, soil erosion, change in temperature, rain etc.
- D. None of these
Explanation
Succession may result from changes caused by the existing community, as well as external physiographic changes such as flooding, erosion, temperature and rainfall shifts. Therefore both listed causes are valid.
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