An environmental scientist observes that global winds move from the equator towards the poles. Which process best accounts for this pattern?
Uneven heating creates temperature differences between latitudes
The Sun does not heat the Earth's surface evenly; regions near the equator receive almost vertical rays and absorb far more solar energy than the poles, where the rays strike at a shallow angle.
This difference in heating warms the equatorial air, which rises and creates a low-pressure belt, while the colder polar air sinks and forms high-pressure zones.
Air then flows from the high-pressure polar regions to the low-pressure equatorial belt, setting up large-scale global wind systems that move heat from the equator towards the poles.
Hence, the correct answer is Uneven heating creates temperature differences between latitudes.
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