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The best technique for direct study of the ocean floor is:

coring
echo sounding
seismic profiling
ocean tectonics

User Majkrzak
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2 Answers

1 vote

The answer is CORING

User Kacper
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The best device to use if you want to use the seafloor sediment to study a long period of history is a. piston corer.

ANSWER:::piston corer or coring witch ever one your answer choices list

hope this helped :)
Have an amazing day
User Changa
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