Each chemical element, such as carbon and oxygen, consists of atoms unique to it.Each atom is understood to be made up of three basic parts.For decades, the biologists have boldly proclaimed that, whereas we cannot observe today one type of creature evolving into a totally different type of creature, “Time is the hero of the plot. No one even bothers to ask what assumptions drive the conclusions.So let’s take a closer look at these methods and see how reliable they really are.However, rocks and other objects in nature do not give off such obvious clues about how long they have been around.So, we rely on radiometric dating to calculate their ages.
Different methods of radiometric dating can be used to estimate the age of a variety of natural and even man-made materials.
For example, based on the primate fossil record, scientists know that living primates evolved from fossil primates and that this evolutionary history took tens of millions of years.
By comparing fossils of different primate species, scientists can examine how features changed and how primates evolved through time.
These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing.
As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.
Radioactive dating is a method of dating rocks and minerals using radioactive isotopes.