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1 cm = 405 km

Explanation:

The scale of the map can be seen at the bottom-left corner of the map to be 1 cm = 405 km. This means that for every 1 cm on the map, the actual distance/length of a centimeter, the actual measurement on earth is 405 kilometers. All maps have usually have this scale to give a proper documentation/fact of what is been illustrated.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.