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The oldest material found on Earth is a zircon grain that is 4.12 Ga.How come there are no rocks that are the same age as Earth (4.54 Ga) ?
Discouraged Workers
Individuals who have stopped looking for work because they believe there are no job opportunities available for them.
Cyclically Unemployed
Individuals who have lost their jobs due to a downturn in the business cycle, reflecting a lack of demand within the economy.
Frictionally Unemployed
Individuals temporarily out of work while transitioning between jobs or entering the workforce.
Structurally Unemployed
Individuals who are unemployed due to changes in the market that make their skills obsolete.
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