Radioactivity or radioactive decay is the process that occurs when unstable isotopes or atoms release energy by emitting radiations such as ,gamma radiations, alpha radiations and beta radiations to attain stability. Therefore, in this case decay is likely to occur when a given atom has two many neutrons in its nucleus in order to attain stability.
The answer is B hope this is right
The Organisms that formed them likely lived during the Paleozoic era.
Answer:
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Sedimentary rocks are turned into metamorphic rocks by heat and pressure
