Which of the following is not a type of Natural Disaster?

The correct answer is Groundwater poisoning.

Key Points

• Disaster
  • It is an undesirable catastrophe resulting from forces that are largely beyond human control, strikes quickly with little or no warning, and causes or threatens serious disruption of life and property.
  •  For example, earthquakes, tsunamis, cyclones, floods, etc.
  • Types of Natural Disasters
    • Atmospheric
      • Blizzards, Thunderstorms, Lightning, Tornadoes, Tropical Cyclone, Drought, Hailstorm, Frost, Heat Wave, or Loo, Cold Waves, etc. 
      • Therefore, A Cyclone is a type of atmospheric disaster. Hence, Option 4 is correct.
    • Terrestrial
      • Earthquakes, Volcanic Eruptions, Landslides, Avalanches, Subsidence, and Soil Erosion.
    • Aquatic
      • Floods, Tidal Waves, Ocean Currents, Storm Surge, and Tsunami.
    • Biological
      • Plants and Animals as colonisers (Locusts, etc.). Insects infestation, fungal, bacterial, and viral diseases such as bird flu, dengue, etc.
  • Man-made disasters
    • Human-induced disasters are very dangerous catastrophes caused by humans.
    • Chemical spills, hazardous material spills, explosives, chemical or biological attacks, nuclear blasts, rail accidents, airline crashes, or groundwater poisoning are all instances of man-made disasters. Hence, Option 3 is correct.