Challenger Logo

Challenger App

Get it on Google PlayGet it on App Store
Challenger App

No.1 PSC Learning App

★
★
★
★
★
1M+ Downloads
Get App
Which of these disasters is not categorized under 'Geological Disasters'?

AEarthquakes

BDam Failures

CMine Disasters

DSnow Avalanches

Answer:

D. Snow Avalanches

Read Explanation:

While geological factors like slope stability play a role in where snow avalanches occur, their primary classification is typically under Water and Climate Related Disasters or Hydrometeorological Disasters.

  • Geological Disasters specifically relate to processes originating from the Earth's solid crust, such as earthquakes, volcanic eruptions, landslides (of rock and soil), and tsunamis (often triggered by underwater geological events).

  • Snow Avalanches, on the other hand, are sudden, rapid flows of large masses of snow down a mountain slope. Their formation and release are heavily influenced by:

    • Weather and Climate: Snowfall patterns, temperature changes, wind, and snowpack conditions (e.g., layers, metamorphism) are critical factors.

    • Water Content: The presence and type of water within the snowpack significantly affect its stability.

Therefore, although the terrain (geology) is a prerequisite, the dynamic conditions that lead to an avalanche are overwhelmingly atmospheric and hydrological, distinguishing it from purely geological events.

Related Questions:

Which of the following are recognized categories of natural disasters?

  1. Geophysical events are a category of natural disasters.
  2. Biological events are also considered a category of natural disasters.
  3. Hydrological and climatological events are distinct categories of natural disasters.
  4. Natural disasters are only classified under a single, unified category, with no sub-classifications.
    What is the step immediately following the 'Exercise Proposal and Approval' in the DMEx planning phase?

    Concerning the primary objectives and outcomes of mock exercises, which statements are accurate?

    1. Mock exercises facilitate the rehearsal of Disaster Management (DM) roles to identify areas for procedural improvement.
    2. A key outcome is the performance evaluation of participants and stakeholders to improve the overall disaster management system.
    3. These exercises primarily aim to test individual decision-making skills, rather than inter-agency coordination.
    4. They are designed to prevent future disasters entirely by simulating all possible scenarios.

      Which of the following statements about a Composite, Long-term Disaster Health Preparedness Plan is incorrect?

      1. The plan is exclusively focused on medical treatment during a disaster and does not cover prevention or mitigation.
      2. Resource planning only involves identifying financial needs, excluding human and material resources.
      3. A Community Profile is an initial step to understand vulnerabilities, and a Plan of Action outlines specific strategies.
      4. Coordination with other sectors and services is explicitly termed 'Allied Planning' within the comprehensive framework.

        Which of the following statements accurately describes volcanic eruptions?

        1. Volcanic eruptions involve the expulsion of molten rock and gases from a volcanic vent.
        2. Only solid materials are ejected during a volcanic eruption, not gases.
        3. The primary substance expelled during an eruption is magma after it reaches the Earth's surface.