When we use a rectangular projection, the lines of longitude are parallel to each other and you can determine directions from one place to another. Hudson bay is the large area of open water in eastern Canada. This map of the continental United States uses color to show vegetation and shading to show topography - mountains and valleys. Vegetation reflects the green part of sunlight, as well as infrared, but does not reflect much of the other wavelengths. Water, soil, rock, roads, and buildings reflect sunlight differently.
Scientists combine the amounts of reflected green, red, and infrared light to map vegetation.
A map of land elevation is then added to show the topography. The information in this table comes from the image caption . Depending on your screen, some of these colors may be hard to see. Match Images to Locations Small Image Location Description 1. The Great Salt Lake and the Great Salt Lake Desert in Utah 2.