Carbon-14 has a half-life of 5,730 years. Explain why C-14 wouldn't be a good choice for dating something from many million years ago.

Scientists know the half-life of C-14 (5,730 years), so they can figure out how long ago the organism died. Carbon-14 dating can only be used to determine the age of something that was once alive. It can’t be used to determine the age of a moon rock or a meteorite.

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the majority of cambodians living today were born after the khmer rouge was ousted in 1979 and some who survived can forget how bad it was. when khmer rouge forces seized phnom penh on april 17, 1975, the couple was living with eight of their children in a rural town called kampong chhnang.

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