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Which of the following statements about India's classification of tropical cyclones are correct?

  1. A Cyclonic Storm has wind speeds between 62 to 88 kmph.
  2. A Severe Cyclonic Storm is defined by wind speeds of 119 to 221 kmph.
  3. A Cyclonic Storm is equivalent to wind speeds of 34 to 47 knots.

    Aരണ്ടും മൂന്നും

    Bമൂന്ന് മാത്രം

    Cഒന്നും രണ്ടും

    Dഒന്നും മൂന്നും

    Answer:

    D. ഒന്നും മൂന്നും

    Read Explanation:

    • The Indian Meteorological Department (IMD) uses a specific classification system for tropical cyclones forming over the Bay of Bengal and the Arabian Sea. This system categorizes cyclones based on their sustained wind speeds, enabling precise communication about their intensity and potential threat. Each category corresponds to a different level of hazard and requires specific preparedness measures.


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    Consider the following factors. Which of them are common causes of landslides?

    1. Heavy rainfall can saturate soil, significantly increasing its weight and reducing its stability.
    2. Soil erosion strengthens slopes by removing loose material, making them more resilient.
    3. Earth tremors and seismic activity can destabilize the ground, triggering mass movements.
    4. Areas under heavy snow are prone to landslides due to the weight of the snow and ground saturation from melting.