asked 166k views
1 vote
The Doppler Effect means that all observers of a moving wave source detect the same wave frequency.

True or False

asked
User Xaa
by
8.4k points

1 Answer

6 votes
Index fossils (also known as guide
fossils, indicator fossils or zone
fossils) are fossils used to define
and identify geologic periods (or
faunal stages).
answered
User Xinyong Cheng
by
8.2k points
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