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Radioactive decay refers to the process in which a radioactive form of an element is converted into a nonradioactive product at a regular rate.

The nucleus of every radioactive element such as radium and uranium spontaneously disintegrates over time, transforming itself into the nucleus of an atom of a different element.

Invisible, high-energy particles that constantly bombard Earth from all directions in space.

Also known as tree-ring dating, the science concerned with determining the age of trees by examining their growth rings.

If a certain kind of pollen is found in an archaeological site, scientists can check when the plant that produced that pollen lived to determine the relative age of the site.

Absolute dating methods are carried out in a laboratory.

The range of conventional radiocarbon dating is 30, to 40, years.

Eventually, the entire ecosystem community of plants and animals of the planet, including humans, is filled with a concentration of carbon As long as an organism is alive, the supply of carbon is replenished.

Thermoluminescence pronounced ther-moeloo-mi-NES-ence dating is very useful for determining the age of pottery.

Dendrochronology is a dating technique that makes use of tree growth rings. The older the pottery, the brighter the light that will be emitted.

Carbon, a radioactive form of the element carbon, is created in the atmosphere by cosmic rays invisible, high-energy particles that constantly bombard Earth from all directions in space.

When carbon falls to Earth, it is absorbed by plants.

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