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Caption: Great winds travel the surface of our planet. They often blow with the same force and move in the same direction. Called prevailing winds, they are the result of large currents of warm and cool air mixing together. There are three types of prevailing wind: west winds, trade winds, and polar winds.
Credit: Album / Universal Images Group
Image size: 2868 × 2124 px | 17.4 MB
Print size: 24.3 × 18.0 cm | 1129.1 × 836.2 in (300 dpi)