Why is carbon 14 useful in radioactive dating

In 1949, American chemist Willard Libby, who worked on the development of the atomic bomb, published the first set of radiocarbon dates.

His radiocarbon dating technique is the most important development in absolute dating in archaeology and remains the main tool for dating the past 50,000 years.

Plankton absorbs, Carbon-14 from the ocean much like terrestrial plants absorb Carbon-14 from the air.

Since plankton is the foundation of the marine food chain, Carbon-14 is spread throughout aquatic life.

Historical documents and calendars can be used to find such absolute dates; however, when working in a site without such documents, it is hard for absolute dates to be determined.

The extra neutrons in Carbon-14’s case make it radioactive (thus the term, radiocarbon).

Radiocarbon is produced in the upper atmosphere after Nitrogen-14 isotopes have been impacted by cosmic radiation.

Rodents, for example, can create havoc in a site by moving items from one context to another.

Natural disasters like floods can sweep away top layers of sites to other locations.

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  1. And with that knowledge I look at my cousins and their failing relationships, marriages etc.... People putting up with terrible behaviour from their "partners" (not sure how you can apply that label to someone who gives you so much grief) and they – presumably – think it's just a normal part of life, dealing with rubbish that another person puts on you. I'm guessing what your female friends as saying is they are looking for someone with shared interests/lifestyles not just someone who will provide for them whien they are an obedient housewife Lol @ flowers. Just a casual dinner and stroll afterwards in the park or around the mall is what I've done and it's worked.