A. In medicine, they are used as tracers for diagnostic purposes
B. In industry, they are used to detect leak in water, oil and gas pipelines
C. They are used to determine the age of rocks and fossils
D. All of these statements are correct
A. In medicine, they are used as tracers for diagnostic purposes
B. In industry, they are used to detect leak in water, oil and gas pipelines
C. They are used to determine the age of rocks and fossils
D. All of these statements are correct
A Carbon B Iron C Tungsten D None of these
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