Trade winds blow from the Subtropical High-Pressure belts (around 30° N and S) toward the Equatorial Low-Pressure belt (the ITCZ). These winds are constant and reliable, blowing from the northeast in the Northern Hemisphere and the southeast in the Southern Hemisphere. They were historically vital for sailing ships crossing the world’s great oceans. ANSWER: (B) Subtropical Highs
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Trade winds originate from subtropical high-pressure belts and blow toward the equatorial low-pressure region. Due to the Coriolis force, they flow northeast in the Northern Hemisphere and southeast in the Southern Hemisphere. These winds are crucial for global climate, ocean currents and historical sea navigation.
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The Trade Winds are a core part of the Hadley Cell circulation. Near 30° latitude, dry air descends, creating high-pressure zones. This air then rushes toward the low pressure at the equator to replace air that has risen there. Because of the Coriolis effect, these winds are deflected westward, becoming the “Northeast Trades” and “Southeast Trades.” Where these two wind systems meet at the equator, they create the Intertropical Convergence Zone (ITCZ), a region of light winds and heavy rainfall. This global wind pattern is the primary driver of tropical weather and ocean currents.