Answer: Radiometric dating
Explanation: Radiometric dating is a procedure used to determine the age of elements such as rocks and fossils. It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.
Answer:
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Protozoans are free-living or parasitic eukaryotic organisms. They feed on dead and decay matter.
<h3>What are protozoans?</h3>
Protozoans are microorganisms. They are eukaryotic organisms, and they can be parasitic or free-living. They feed on dead and decay matter. Examples are amoeba, euglena, paramecium, etc.
Organisms that eat dead or decay matter are called decomposers. They clean the environment by eating the debris or decay, matter. Microorganisms like bacteria or protozoans are decomposers.
Thus, protozoans are decomposers as they feed on dead and decay matter.
To learn more about protozoans, refer to the link:
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