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Oliga [24]
3 years ago
10

What two things did 19th century scientists do to determine the relative ages of sedimentary rock all over the world?

Geography
2 answers:
Zielflug [23.3K]3 years ago
7 0
<span>They studied fossils and applied the principle that old layers of rock are below young layers! -. ... What two things did 19th century scientists do to determine the relative ages of sedimentary rock all over the world? ... Making the world better, one answer at a time. ... What are two things that sedimentary rocks change to?</span><span>

</span>
Shkiper50 [21]3 years ago
4 0
They studied fossils (paleontology) and applied the principle that old layers or rock are lying just below young layers
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