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5 votes
The best approximation of the true outer

boundary of the continents is the seaward edge of
a. contirental shelf.
b. mid-ocean ridge.
C. present-day shorelines.
d. ocean trenches.

1 Answer

6 votes

Answer:

A!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

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