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A teenager, or teen, is someone who is 13 to 19 years old. They can also be called "adolescents". The laws on what teenagers may do vary between countries. The term “teenager” became widely used for people who are old enough to have their own money to spend, but are not yet adults (legally, not biologically [1] [2] ), after the scientist ...
Cubic metre. One cubic metre of concrete (representing the world annual production per inhabitant) The cubic metre (symbol m³) is the SI unit of volume. It is a cube with a length, height, and width of one metre, with 1,000 litres of space. In the many places it is spelled " cubic meter ". Other names are stère and kilolitre or kiloliter .
