Question

Secondary succession takes place on/in
A. Newly created pond
B. Newly cooled lava
C. Bare rock
D. Degraded forest

Answer 1

Hint:In an ecological community, the process of succession changes the structure of the species, over a time period. In an ecosystem, there are mainly two types of succession, namely primary and secondary. There is a marked difference in the types of ecosystems, both these succession patterns occur.

Complete Answer:
During secondary succession, there is a development of a community on an ecosystem that was previously occupied or colonized. The ecosystem would have been damaged or destroyed. The areas where this kind of succession takes place will be a woodland, after continuous felling of trees. Or a grassland affected by the fire. During secondary succession, the ecosystem tries to rejuvenate the lost resources. Thus from the above-given options, the example for secondary succession to take place is a degraded forest.
Considering the other given options:
A newly created pond is an example of primary succession since it is a new habitat and life is yet to be formed in it for the first time. Thus secondary succession cannot take place in it.
An area with newly cooled lava cannot be the site for secondary succession, since it was not inhabitable before cooling down. Thus it is also an example for primary succession.
Bare rock is also an example of an ecosystem with primary succession since life is yet to be formed by utilizing the organic materials on it.

Thus by considering the given options, the most appropriate one was found to be D, that is, secondary succession takes place in a degraded forest.

Note: The process of secondary succession is more rapid and less time consuming than primary succession. This is due to the fact that the soil already contains organic matter which makes it easier for life to develop again.