The correct option is 1 only
Explanation
Winds are broadly classified into three major categories based on their scale, duration, and periodicity: Permanent (Planetary) winds, Seasonal (Periodic) winds, and Local winds.- Statement 1 is Correct: Trade Winds are Permanent winds (also known as Planetary or Primary winds). They blow constantly throughout the year in a specific direction from the Subtropical High-Pressure Belts towards the Equatorial Low-Pressure Belt. Other examples of permanent winds include Westerlies and Polar Easterlies.
- Statement 2 is Incorrect: Monsoons are classified as Seasonal winds (Secondary or Periodic winds), not Local winds. They are characterized by the seasonal reversal of wind direction, blowing from sea to land during summer and from land to sea during winter.
- Statement 3 is Incorrect: Loo is a Local wind (Tertiary wind). Local winds are caused by local differences in temperature and pressure and are confined to small areas for short durations. The Loo is a hot, dry, and strong wind that blows over the northern plains of India during summer afternoons.
Key Takeaway: The standard classification of winds distinguishes between Permanent winds (e.g., Trade Winds), Seasonal winds (e.g., Monsoons), and Local winds (e.g., Loo, Chinook, Foehn).