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Which of the following statements correctly describe Tsunamis?

  1. Tsunamis are often referred to as "seismic sea waves."
  2. The word "Tsunami" originates from Japanese, meaning "harbor wave."
  3. Tsunamis are characterized by a series of small waves with short wavelengths.
  4. They are primarily generated by sudden displacements on the seafloor.

    Aരണ്ടും നാലും

    Bരണ്ട് മാത്രം

    Cഒന്നും രണ്ടും നാലും

    Dഒന്നും മൂന്നും

    Answer:

    C. ഒന്നും രണ്ടും നാലും

    Read Explanation:

    • Tsunamis are powerful ocean waves caused by large-scale disturbances, typically seismic events. Unlike regular wind-driven waves, tsunamis have extremely long wavelengths and periods, often tens to hundreds of kilometers long, and their entire water column from surface to seafloor is displaced, giving them immense energy and destructive potential upon reaching coastlines.


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    Which of the following statements about the origin of the term 'disaster' is correct?

    1. The term 'disaster' originates from a Greek word meaning 'great catastrophe'.
    2. It comes from the French word 'désastre'.
    3. 'Désastre' is a blend of 'dés' (bad) and 'astre' (star).
    4. The literal translation of 'désastre' is 'good fortune'.

      Regarding the principle of inclusiveness in Disaster Management Exercises (DMEx), which statement(s) is/are correct?

      1. Only emergency services personnel need to be actively involved in DMEx.
      2. All segments of the community should be actively involved wherever feasible.
      3. Particular attention must be given to ensuring the participation of vulnerable populations.
        Which of the following is known as an edaphic abiotic factor?

        What role does disaster mitigation play in societal resilience?

        1. Mitigation primarily focuses on post-disaster response and recovery efforts, rather than prevention.
        2. By reducing the severity and impact of disasters, mitigation helps societies bounce back faster and with less damage.
        3. Mitigation efforts contribute to sustainable development by protecting infrastructure and livelihoods from future hazards.
        4. The main goal of mitigation is to completely eliminate all natural hazards.