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metric prefixes are used worldwide to refer to large numbers
prefix mega is symbolized M
prefix giga is symbolized G
mega means 10 to the sixth power
giga means 10 to the ninth power
communicate more clearly with metric prefixes
read more about SI (international system of units)
read more about ICAS (integrated chronological applications system)
read AAT ICAS poster about metric terms for large and small numbers

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Merganser action stills preview

action stills of a group of Merganser swimming back upstream on the Merced River, at Cathedral Beach in the Yosemite Valley.

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