Daily Quiz 408: Assessing Himalayan Disaster Risks and Climate Resilience
This quiz, designed for UPSC aspirants and general knowledge enthusiasts, delves into the critical factors that make the Himalayan region highly susceptible to natural disasters. It also explores key concepts like glacial lake outburst floods (GLOFs) and climate-resilient infrastructure, providing insights into environmental challenges and mitigation strategies.
Quiz Questions and Detailed Explanations
Question 1: Which of the following factors makes the Himalayan region highly vulnerable to disasters?
- A. Stable geological structure
- B. Young fold mountains
- C. Low rainfall variability
- D. Absence of glaciers
Answer: B
The Himalayas are classified as young fold mountains, which means they are geologically unstable. This instability arises from ongoing tectonic activity, making the region prone to frequent earthquakes and landslides. Unlike older mountain ranges with more settled structures, the youthful nature of the Himalayas contributes significantly to their high disaster risk.
Question 2: Glacial lake outburst floods (GLOFs) are primarily caused by:
- A. Earthquakes alone
- B. Sudden release of water from glacial lakes
- C. Ocean tides
- D. Volcanic eruptions
Answer: B
GLOFs occur when glacial lakes, formed by melting ice, experience a sudden breach or burst. This can be triggered by factors like excessive melting due to climate change, pressure build-up from accumulating water, or external events such as avalanches. The rapid release of massive volumes of water leads to devastating floods downstream, posing severe risks to communities and ecosystems in mountainous areas.
Question 3: Which of the following is NOT a feature of climate-resilient infrastructure?
- A. Risk-sensitive planning
- B. Ignoring environmental impact assessments
- C. Use of eco-friendly engineering
- D. Disaster preparedness systems
Answer: B
Climate-resilient infrastructure is designed to withstand and adapt to climate-related hazards. Key features include risk-sensitive planning that accounts for potential disasters, the use of eco-friendly engineering to minimize environmental harm, and integrated disaster preparedness systems. Ignoring environmental impact assessments contradicts this approach, as it fails to evaluate and mitigate adverse effects on the environment, undermining resilience efforts.
Question 4: The term ‘Third Pole’ refers to:
- A. Arctic region
- B. Antarctic region
- C. Himalayan region
- D. Sahara Desert
Answer: C
The Himalayan region is often called the "Third Pole" because it contains the largest reserve of ice and snow outside the polar regions. This vast glacial storage plays a crucial role in global climate systems and water resources, feeding major river systems that support millions of people across Asia. The designation highlights its environmental significance and vulnerability to climate change.
Question 5: Which of the following measures helps reduce landslide risks in the Himalayas?
- A. Deforestation
- B. Unplanned urbanization
- C. Slope stabilization techniques
- D. River diversion
Answer: C
Slope stabilization techniques, such as terracing, afforestation, and the use of retaining walls, are effective in preventing soil erosion and landslides in the Himalayas. These methods enhance the structural integrity of slopes, reducing the likelihood of mass movements. In contrast, deforestation and unplanned urbanization exacerbate risks by removing natural vegetation and increasing soil instability, while river diversion can alter hydrological patterns and potentially trigger other hazards.
Importance of This Knowledge
Understanding these concepts is vital for disaster management, environmental conservation, and policy-making in vulnerable regions like the Himalayas. As climate change intensifies, awareness of GLOFs, resilient infrastructure, and mitigation strategies becomes increasingly important for sustainable development and community safety.
This quiz serves as a valuable tool for students, professionals, and anyone interested in geography and environmental science, offering a concise yet comprehensive overview of key issues affecting one of the world's most critical ecosystems.
