Question

Q.9.
The process of autogenic vegetational succession in an ecosystem is brought about by
the changes due to
a) External disturbance factors
b) Internal disturbance factors
c)Both internal and external disturbance factors
d)Undisturbed internal factors
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Answer 1

Answer:

undisturbed internal factors.

this is the right answer

Answer 2

Answer:

The Process of Autogenic vegetation succession in an ecosystem had a change due to the External disturbances  Factors.

Explanation:

The external disturbances caused due to tropical climatic changes causes the vegetable succession. The natural biological factors like soil, climatic interactions all affect the changes in the succession. The volcanic lava also is the major Autogenic succession. The ecological competition between the species also affects the Autogenic vegetation succession. Climatic condition wind, rain also is a factor of disturbances.