Radiometric dating is a technique where the dating materials such as stones which are based on a comparison between the observed abundance. another method used is stratiguaphy which provides a sequence of events from which relative dates can be extrapolated.Life began 3.8 billion years ago, and insects diversified 290 million years ago, but the human and chimpanzee lineages diverged only five million years ago. Scientist have been able to discover these walks of life through dating techniques and research.

Fission track dating is a radiometric dating technique based on analyses of the damage trails, or tracks, left by fission fragments in certain uranium-bearing minerals and glasses.] Fission-track dating is a relatively simple but robust method of radiometric dating that has made a significant impact on understanding the thermal history of continental crust, the timing of volcanic events, and the source and age of different archeological artifacts. The method involves using the number of fission events produced from the spontaneous decay of uranium-238 in common accessory minerals to date the time of rock cooling below closure temperature. Fission tracks are sensitive to heat, and therefore the technique is useful at unraveling the thermal evolution of rocks and minerals. Most current research using fission tracks is aimed at: a) understanding the evolution of mountain belts; b) determining the source or provenance of sediments; c) studying the thermal evolution of basins; d) determining the age of poorly dated strata; and e) dating and provenance determination of archeological artifacts.fission tracking method is another valuable source for scientist.
A.the chronometric method that would be most likely to be used to determine the 50,000y.a and 1.0 m.y.a would have to be both the k/Ar and AR because the two methods are constantly worked to date the year range of volcanic activities throughout the years.
B. the skull x will be the youngest out of them all because of its age 50,000 y.a., followed by the second youngest skull y because the data indicates its older then 50,000 y. a and less then 1.0 m.y.a, the oldest skull has to be skull 2 because its data indicates it is over 1.0 m.y.a
C the skull that has a relationship with the vertebral column on the right side will have to be skull y because it does look like it can support the later hominods.
D. Fireplaces 2and 3 will more then likely be the same age in terms, radiocarbon dating could be used to give a timeline if the fireplaces are less then 60,000 years old. The carbon method could not be used for the fireplace 1 because it goes over the time of creation.
E. The A & C bones are both older than 1,000,000 years. Radiocarbon dating is used to date bones but may not work for bones this old. If the bones are millions of years or older, the procedure would be to date the age of the surrounding rock using potassium argon dating, uranium dating or strontium dating.
F. there must have been a shift in the earth’s climate that raised one area and the after affect caused the differences in elevation between the two regions.