Complete the paragraph to describe how scientists obtain information about past elmes,
RE
Gla...
Complete the paragraph to describe how scientists obtain information about past elmes,
RE
Glaciologists, geochemists, and climatologists study ice layers to learn about past climates. Distinct ice layers are
caused by
v. When studying ice layers, scientists use
to measure isotopes of
certain gases. These gases reveal the
at the time when the ice layers were formed.
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