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ICSE Class 9 Geography Question 26 of 39

Atmospheric Pressure and Winds — Question 37

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Question 37

What are periodic winds? How are they caused?

Answer

Periodic winds are the seasonal winds that reverse their direction with season. These winds blow at regular intervals or in regular cycles.

These winds develop as a result of variation in local temperature, pressure and humidity. Their origin is attributed to formation of air currents, crossing mountain ranges, valleys and physical barriers.