CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.

Detailed explanation-2: -The age of fossils can be determined by Radioactive isotope method and Relative dating method.In the relative dating method, fossils which are closer to the surface are more recent than the fossils we find in deeper layers.

Detailed explanation-3: -Radioactive isotopes, or radioisotopes, can be used to estimate the ages of not only of rocks, but also of fossils and artifacts made long ago by human beings. Even the age of Earth has been estimated on the basis of radioisotopes. The general method is called radioactive dating.

Detailed explanation-4: -Radiocarbon dating (usually referred to simply as carbon-14 dating) is a radiometric dating method. It uses the naturally occurring radioisotope carbon-14 (14C) to estimate the age of carbon-bearing materials up to about 58, 000 to 62, 000 years old.

Detailed explanation-5: -Scientists called geochronologists are experts in dating rocks and fossils, and can often date fossils younger than around 50, 000 years old using radiocarbon dating.