From the amount of layers
Because if you know how old the fossil is, and you find the fossil inside a rock, you know that rock has a maxium age corresponding with the age of the fossil.
ROck? i dont know its just better the the old answer witch was kfhjgkljfoiahgkasmfiauewomlkq
it looks likes a square old rock with know elements
Yes the do Rock I know!!!!!!!! Yes the do Rock I know!!!!!!!!
It is fairly easy to determine the age of lava or volcanic ash using radiometric dating, but much harder with sedimentary rock. But, if a layer of sedimentary rock is in between two layers of volcanic rock, then we know if had to have formed after the first layer and before the second one. If we know how old the volcanic layers are, then we have a general idea of how old the sedimentary layer is as well.
i dont know of a campy rock but i do know of a camp rock
No one can really know, but I thing modern rock music, meaning not "rockabilly" type music, has been around since the "British Invasion" of 1964.
Old Skoöl of Rock was created in 2009.
A crystalline rock could be anything from 4,600 million years old to an hour old.
rock music is old,but it was different types of rock in the olden days that blew records!
A crystalline rock could be anything from 4,600 million years old to an hour old.
Kid Rock's son is 14 years old