Green wiki:
>For other uses, see Green (disambiguation). Green is a color seen commonly in nature. Many plants are green mainly because of a complex chemical known as chlorophyll which is involved in photosynthesis.Green light has a wavelength of roughly 520â570 nm and is one of the additive primary colors. It is the complement of magenta. Many artists, however, continue to use a traditional color theory in which the complement of green is considered to be red.People who are red-green color blind can often distinguish between the two colors but confuse them with other colors, for example, bright green with yellow; dark green with brown.
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Rock wiki:
ay refer to:GeologyRock (geology), a substance composed of minerals.An islet, specifically, one that is small and with minimal soilA gemstone (slang), usually understood to be a diamondRock salt, an unrefined form of sodium chloride
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