Question

What is the re-establishment of ecosystem?
A. Secondary succession
B. Primary succession
C. Ecological function
D. Ecological system

Answer 1

Re-establishment of an ecosystem aims to recreate, accelerate or initiate an ecosystem that is destroyed or disturbed. Disturbances could be because of many environmental changes that alter the ecosystem function and structure. There are certain disturbances that lead to destruction in an ecosystem.

Complete step by step answer:
Re-establishment of the ecosystem includes restoration projects which differ in their objectives and their methods of achieving some goals. There is an ecosystem that is disturbed due to any climate or environmental changes. Due to which all the habitats in that system either died or shifted to other ecosystems. The re-establishment aims to recreate that disturbed ecosystem so that various organisms come and live again on the same ecosystem. Primary succession is a term used when an ecosystem has its habitat and it does not need to be restored. Secondary succession is a term used to refer to an ecosystem that needs restoration again as it has life on it in the past. The secondary succession aims to bring back the entire organism that lived there in the past so that the ecosystem could be restored which ultimately helps in maintaining the ecological balance. The re-establishment of an ecosystem thus becomes very important.
Hence, the correct option is A, i.e., Secondary succession.

Note: Ecosystem helps to maintain the ecological balance on our planet as it contains various systems in it which are beneficial in terms of life on Earth. The ecological ecosystem should be re-established as it helps to conserve various species and will lead to sustaining life on the planet.