People who work with radioactive materials often wear a film badge to reveal how much radiation they have been exposed to. The film badge dosimeter or the film badge is a dosimeter worn by these people working with materials that are radioactive for the purpose of monitoring cumulative radiation dose due to ionizing radiation. The badge has two parts; the photographic film, and a holder.
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They are helpers of the world who find out about the natural world and try to explain what they have observed.
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living organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering
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