igneous, granite etc
Uranium dating is very useful to evaluate the age of rocks and minerals.
Sedimentary Rocks
yes
It is not useful in dating rocks. Only organic substances in terrestrial conditions. No carbon in rocks.
No. Radioactive dating is an absolute dating tool.
relative dating is when you give an estimate date.
75 km is a good enough numeric format.
Relative Dating
okay
Igneous rocks
Geologists determine the age of rocks through a process called radiocarbon dating, a process which "peers inside [the] atoms" of the rocks. For more detailed information about how radiocarbon dating works, check out the related link which is a website with lab instructions for groups in a class.
they are used for radio carbon dating....and carbon 14