MCQ Detailed View

Wind speed is an important factor in meteorology, used to determine weather conditions and their potential effects on the environment, infrastructure, and human safety. Wind speed is commonly measured in kilometers per hour (kph), miles per hour (mph), or meters per second (m/s). According to the Beaufort wind scale, which classifies wind force based on speed and potential impact:

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  A wind speed of 10–13 kilometers per hour (kph) corresponds to a light breeze (approximately Beaufort scale 2–3).

  
  


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  At this speed, wind can gently move leaves, sway small branches, and cause ripples on water surfaces, but it is not strong enough to cause damage to structures, vegetation, or human activities.

  
  

Characteristics of 10–13 kph Wind Speed:

1. 
   

   Impact on Nature: Light rustling of leaves, minimal effect on plants and crops.

   
   


2. 
   

   Effect on Water: Small waves or ripples on lakes or ponds.

   
   


3. 
   

   Human Comfort: Noticeable on the skin but does not hinder walking or outdoor activities.

   
   


4. 
   

   Damage Level: Classified as minor or no damage, since it lacks the force to break branches, blow away objects, or cause hazards.

   
   

Comparison with Higher Wind Speeds:

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  Moderate wind (20–30 kph): May cause light debris movement.

  
  


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  Strong wind (40–60 kph): Can break weak branches and affect vehicle handling.

  
  


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  Severe storm winds (>75 kph): Cause considerable to extreme damage.

  
  

Thus, a 10–13 kph wind speed is safe and non-destructive, making Option A: Minor or no damage the correct answer.