Trade winds are the most “regular and stable” winds on Earth. Unlike local breezes or seasonal monsoons, they blow with remarkable consistency in both direction and speed throughout the year. This reliability is why they were named “trade” winds—from the old English word meaning “path” or “track.” ANSWER: (B) Regular and stable
What type of winds are trade winds? (A) Partially irregular (B) Regular and stable (C) Irregular (D) None of the above
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The stability of the trade winds comes from the permanent temperature and pressure difference between the subtropics and the equator. While a passing hurricane or local weather system might briefly disrupt them, the large-scale atmospheric circulation (the Hadley Cell) ensures they quickly return to their steady flow. They typically blow at speeds of 10 to 20 knots. This predictability made them the most important navigational tool for early mariners, allowing for the first reliable global shipping routes between Europe, Africa and the Americas.
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