23 August 2026

Elephant habitat restoration in Assam

The topic provides a practical case study on invasive species management and habitat restoration that can be used as an illustrative example in answers related to biodiversity conservation and environmental degradation.

Questions

1. Discuss the ecological challenges posed by invasive alien species in forest ecosystems and evaluate the potential of biochar production as a sustainable management strategy. 150 words
   Attempt this — 150 words in 8 min

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2. Habitat fragmentation and the proliferation of invasive species are significant threats to megafauna in India. Examine the strategies required for effective habitat restoration in protected areas, citing the role of community-based conservation models. 250 words
   Attempt this — 250 words in 11 min

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Prelims

1. With reference to biochar, consider the following statements: 1. It is produced by heating organic waste in a low-oxygen environment. 2. It can enhance soil water and nutrient retention. 3. It is a stable form of carbon that resists decay. Which of the statements given above are correct?

   1. A 2 and 3 only
   2. B 1 and 2 only
   3. C 1, 2 and 3
   4. D 1 and 3 only

2. Which of the following plant species are identified as invasive alien plants (IAPs) in the context of Assam's forest restoration efforts?

   1. A Chromolaena odorata, Prosopis juliflora, and Eichhornia crassipes
   2. B Parthenium hysterophorus, Eichhornia crassipes, and Prosopis juliflora
   3. C Lantana camara, Chromolaena odorata, and Mikania micrantha
   4. D Lantana camara, Parthenium hysterophorus, and Mikania micrantha