What is animism? the belief in a single god
the belief in a cycle of birth and death
the belief that suffering ends with nirvana
the belief that spirits inhabit objects in nature

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Explanation:

it's a belief in innumerable spiritual beings who helps human or hurt them

Animism is the belief that objects, places, and creatures all possess a distinct spiritual essence. Potentially, animism perceives all things—animals, plants, rocks, rivers, weather systems, human handiwork, and perhaps even words—as animated and alive

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radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.