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Earth Sciences 18 Online
OpenStudy (animallover456):

Need help! Will medal and fan! Which era in earth's history is often referred to as the age of mammals? A. Paleozoic B. Mesozoic C. Precambrian D. Cenozoic

OpenStudy (animallover456):

@Missiey @iKitlen @darkbeautystar

OpenStudy (animallover456):

Someone please help me!!!!

OpenStudy (anonymous):

I think it's the Cenozoic, but I might be wrong.

OpenStudy (animallover456):

Ok, will you research it and see? Please

OpenStudy (anonymous):

The Cenozoic period began about 65 million years ago with the extinction of the dinosaurs and continues through the present. The Cenozoic is divided into just two time periods: the Tertiary, and the Quaternary. That's what the internet said.

OpenStudy (animallover456):

ok thanks! would you like a medal?

OpenStudy (animallover456):

and/or have me fan u?

OpenStudy (anonymous):

You don't have to do either.

OpenStudy (animallover456):

i will medal u anyway...

OpenStudy (animallover456):

could you medal me so i can see what it looks like on my end? u don't have to if u don't want to

OpenStudy (animallover456):

Which method describes an example of absolute dating? A. determining the vertical sequence of rock layers B. determining the horizontal sequence of rock layers C. measuring the radioactive decay of isotopes within rock layers D. identifying index fossil in rock layers

OpenStudy (anonymous):

I think the answer is C measuring the radioactive decay of isotopes within rock layers but I might be wrong.

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