1pc Geologists give a relative age to a sedimentary layer of rock at one
location then they can give the same age to matching layers of rock at a
different location.
True
False

True.

Explanation:

Over the course of time, the physical geography that exist in a certain region tend to gradually changed and older sedimentary rocks tend to be burried underneath and hardens.

Geologist could use the depth and the physical structure of the rocks to provide an estimate on the age of the sedimentary layer of rock. (this might not always be the case, but on average rocks that are burried in deeper layers tend to be older compared to the rocks that exist closer to the surface._

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so you should go with

a. strong

is there a year set? the question is incomplete