![]() ![]() This means that a white patch might be a cloud, but it could also be snow or a salt flat or sunglint. Looking at a satellite image, you see everything between the satellite and the ground (clouds, dust, haze, land) in a single, flat plane. Volcanic plumes also vary in appearance, depending on the type of eruption. It is most often slightly tan, but like soil, can be white, red, dark brown, and even black due to different mineral content. Some cities have a more brown or red tone depending on the materials used for rooftops.ĭust ranges in color, depending on its source. ![]() Citiesĭensely built areas are typically silver or gray from the concentration of concrete and other building materials. ![]() Newly burned land is also dark brown or black, but the burn scar fades to brown before disappearing over time. Volcanic debris is brown, gray, or black. When the ground is white or very pale tan, especially in dried lakebeds, it is because of salt-, silicon-, or calcium-based minerals. In some deserts such as the Australian Outback and the southwestern United States, exposed earth is red or pink because it contains iron oxides like hematite (Greek for blood-like). The color depends on the mineral content of the soil. Bare groundīare or very lightly vegetated ground is usually some shade of brown or tan. Submerged vegetation like kelp forests can provided a shadowy black or brown hue to coastal water. In the oceans, floating plants- phytoplankton-can color the water in a wide variety of blues and greens.
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