PLANETOBSERVER / SCIENCE PHOTO LIBRARY PLANETOBSERVER / SCIENCE PHOTO LIBRARY
North America, satellite image. The land is mostly covered by vegetation and seen as the green areas. Deserts, such as those in the Southwest USA (lower left) are shown in yellow, and mountain ranges are grey. Arctic regions, such as in northern Canada (top) are white. Oceans range from light blue (shallow coastal water) to dark blue (deep water). Image obtained using data from Landsat 5 and Landsat 7 satellites.
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