Question

What was the major challenge associated with Bhakra-Nangal project?

• A. Soil erosion
• B. Loss of biodiversity like flora and fauna
• C. Desertification
• D. Deforestation

Hint:

• Large dams create reservoirs that submerge large areas of land.
• This leads to:
  • Loss of terrestrial habitats (forests, grasslands), resulting in loss of flora and fauna (biodiversity).
  • Displacement of human populations.
  • Alteration of river ecosystems and impacts on aquatic life.
• While deforestation is a part of it, "loss of biodiversity" is a broader ecological impact.

Answer 1

The Correct Option is B

The question asks about the major challenge associated with the Bhakra-Nangal project.

1. Understanding the Project:

The Bhakra-Nangal project is a large multipurpose river valley project involving the construction of dams and canals. Such projects often lead to various environmental and social challenges.

2. Analyzing the Options:

- Soil erosion: While construction activities can lead to some soil erosion, it's typically not the major, overarching challenge.
- Loss of biodiversity like flora and fauna: Large-scale projects involving dams and reservoirs lead to the submersion of large areas, displacing or destroying habitats and ecosystems. This leads to a significant loss of biodiversity.
- Desertification: Desertification is generally associated with arid and semi-arid regions and is not a direct consequence of dam construction.
- Deforestation: The creation of reservoirs and infrastructure often requires clearing large forested areas, leading to deforestation.

3. Determining the Major Challenge:

While deforestation is a significant issue, the submersion of large areas behind the dam leads to a substantial and far-reaching loss of biodiversity, often representing a more pervasive and critical challenge in such projects.

Final Answer:

The major challenge associated with the Bhakra-Nangal project is the Loss of biodiversity like flora and fauna.